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Rosacea Treatment: The Complete Guide

Rosacea Treatment: The Complete Guide

According to the National Rosacea Society, as many as 16 million people suffer from some form of rosacea in the United States alone. With so much of the population affected by the condition, it is no wonder that so many researchers, pharmaceutical companies, and doctors are looking for solutions that will not just control rosacea, but cure it completely.  If you have just been diagnosed with the skin condition, or you just want to learn more about rosacea treatment, then you have come to the right place.  For our quick overview on rosacea: click here Introduction Rosacea, by definition, is a disorder that primarily affects the facial skin by way of phases of flare-ups and remissions. Typically, the first signs of rosacea will appear around age 30; they will first show up as central facial redness and around the eyes, which is associated with a number of systemic disorders. These symptoms may come and go without worsening for some time. However, if the rosacea is left untreated, it will worsen over time, and eventually lead to: Visible Blood Vessels Bumps or Pimples  Swollen, Bumpy or Excessive Tissue of the Nose Dry or Irritated, Bloodshot Eyes Generally speaking, rosacea can affect anyone, no matter their race, gender, or nationality. However, people who have fair skin who tend to flush easily will be at the greatest risk. Additionally, more women are diagnosed with rosacea than men. Find our article on rosacea in people of Asian, African, and Hispanic Heritage. to learn more about how rosacea can affect patients based on ethnic background. Although there is no known cure for rosacea, most people notice the progression of symptoms can be halted and flare-ups managed through identification and avoidance of triggers combined with gentle rosacea skincare, and medical treatment(s). Awareness and intervention can improve the quality of life significantly for rosacea patients. It is important to consult your doctor to discuss medical rosacea treatment options, to gain an understanding of your rosacea triggers, and to explore rosacea skincare routines that can help. Rosacea Symptoms Some people who begin to develop rosacea have no idea that they have the condition at all. However, by understanding the symptoms, it is easier to recognize the issue. There are different types of the condition - which we will discuss later - but the basic symptoms include: Flushing – May appear as blushing or unspecified facial redness. Persistent Redness – May look like a chronic sunburn. Bumps and Pimples – May appear pus-filled and will appear along with redness as well as burning or stinging. Visible Blood Vessels – May appear as enlarged capillaries just under the skin. Eye Irritation – May happen with rosacea. Burning or Stinging – May occur along with itching, tightness, and redness. Dry Skin – Facial skin may be rough and dry. Rarely Facial Swelling – Could appear with other signs or independently. Rosacea commonly appears on the face, but signs of it can form on the chest, scalp, eyes, ears, and neck as well. As mentioned, there are different types of rosacea. We will discuss the four subtypes individually and discuss the rosacea treatments available for each. Rosacea Basics To put it in the most basic terms, rosacea is an inflammation that comes back again and again. Essentially, someone who has this chronic disease will relapse from time to time while going through weeks, months or even years without a single symptom. There is no cure at this time, but this guide sets out to focus on the ways in which each form of rosacea can be treated. More importantly, we set out to provide those living with rosacea, different pathways to minimizing the disruptive symptoms associated with this condition. Types of Rosacea The four subtypes of rosacea, which we will discuss in detail later, include the following: Subtype 1: Facial redness (Erythematotelangiectatic Rosacea) – This type is characterized by flushing, redness, and the appearance of visible blood vessels. Subtype 2: Bumps and Pimples (Papulopustular Rosacea) – This form is characterized by central facial redness and bumps or pimples forming. Subtype 3: Enlargement of the Nose (Phymatous Rosacea) – This type is characterized by thickening and enlargement of the skin and facial tissues, primarily the nose along with bumps and pimples.  Subtype 4: Eye Irritation (Ocular Rosacea)  – This type affects the eye, resulting in dry eyes, excessive tearing, burning eyes, swollen eyelids, vision loss, recurrence of sties, and corneal damage. (NRS) While these are considered different subtypes of the condition, it is very common for patients to have an overlap of more than one subtype at any time. This has given rise to the new classification by National Rosacea Society Expert Committee (2017). General Measures to Avoid Outbreaks The beginning of rosacea treatment simply starts with knowing how you can avoid outbreaks. While these measures will not take away your risk of outbreak completely, they can minimize it a great deal. So, knowing what causes rosacea to flare up and then avoiding those triggers can go a long way toward not letting the condition rule your life. In a way, how much rosacea will be a problem for you can depend on what you do. By learning to avoid flare-ups and your own triggers, you will be able to minimize how often you have issues with the condition. That, of course, doesn’t mean you will always be able to avoid flare-ups. Sometimes, they happen for seemingly no reason at all. However, it does mean you can minimize them. Flushing This is, by far, the most common symptom of rosacea. It appears in all subtypes and can be a frustrating problem for rosacea patients. Some experts even believe that chronic flushing will eventually contribute to other rosacea symptoms. Flushing can be triggered by certain activities, including: Exposure to Extreme Temperatures Exposure to Sunlight Drinking Alcohol Eating Spicy Foods Becoming Very Stressed Exercising Taking Certain Medications Having Hot Flashes Associated with Menopause Each patient can have different triggers and different levels of these triggers as well. For example, you may flush very badly when exposed to sunlight, but someone else with rosacea may not. It’s a good idea to start logging when you experience flushing, the severity of your symptoms, and what caused it. This will help you create a clearer picture of your own triggers. Click here for more information on diet and rosacea. There are certain medications that can help suppress or reduce flushing, including antidepressants, beta-blockers, gabapentin, clonidine, and topical brimonidine or oxymetazoline. Some experts recommend the use of intense pulsed light or lasers and photodynamic therapy, but the results are variable. Skincare In order to manage Rosacea, a good skincare regimen will be key in helping to avoid the dry, rough, and scaly symptoms of rosacea. Using gentle skincare measures and avoiding anything harsh that could further aggravate the skin are good fundamental guidelines to follow. The following tips are critical to creating an effective rosacea skincare system:  Regular Cleansing – It is vital to use only gentle measures to cleanse your skin. This includes using lukewarm water, only the fingertips, and non-soap cleansers such as beauty bars and mild liquid cleansers. Avoiding Harsh Topical Products – A variety of different skin products are simply too harsh for patients with rosacea, including exfoliating agents, toners, and astringents. You should also avoid manual exfoliation with sponges or rough cloths. Using the right type of skincare will ensure that you do not make the symptoms of your rosacea worse. If formulated correctly, some topical skincare products can even lessen the risk of symptoms and flare-ups. Rosacea skin is sensitive skin and facial irritation can be caused or exacerbated by skincare products themselves. Thus, gentle hypoallergenic skincare that avoids irritation is an important factor in the management of rosacea. Furthermore, gentle skincare can help to build and maintain the barrier function of the skin, helping to prevent bacterial overgrowth and improving overall skin health. The barrier function of the skin has two components: the stratum corneum and the acid mantle. The stratum corneum is the outermost layer of cells on the skin. These cells are dead but form a cohesive barrier that is important in preventing infection and UV damage. The acid mantle is a very fine, slightly acidic (between pH 4.5 and 6.2) film on the surface of the skin secreted by the sebaceous glands, which acts as a barrier to bacteria, viruses, and other potential contaminants. Gentle, hypoallergenic skincare for rosacea should include a mild cleanser, and gentle serum and a moisturizer. Avoid products containing allergens such as dyes, fragrances, and formaldehyde-releasing agents. Also, chemicals that strip the acid mantle or stratum corneum such as alcohol-based toners, mechanical/chemical exfoliants, and retinol should be avoided.   Sun Protection Because exposure to sunlight is a very common trigger for rosacea symptoms, using sun protection is a must. Not only does the warmth of the sunlight cause flushing flares, but the exposure to ultraviolet radiation can cause changes beneath the skin that worsen rosacea. The best option for anyone with rosacea is to use a broad-spectrum sunblock of at least SPF 30 or higher. Additionally, it is a good idea to use sun-protective clothing and to avoid the midday sun. The best sunblock to use when you have rosacea will be one that incorporates a cream or lotion base because the alcohol can further irritate the skin. Cosmetic Camouflage When rosacea symptoms appear, one option is to cover the problem with cosmetics. Red patches and flushing can often be covered well enough that others will not notice. For women, it is best to start with a green-tinted concealer and finish with a  foundation. For men, it is best to use a green-tinted facial powder to reduce the redness. When choosing makeup, it is best to look for products that do not contain oil and specifically say on the label that they are non-comedogenic. Also, check products for alcohol, peppermint, menthol, clove oil, eucalyptus oil, salicylic acid, and hazel oil all of which may aggravate your rosacea.  Now that we have covered the basics of rosacea, and how you can take steps to avoid flare-ups, we will go over each of the subtypes with information on treatment for each as well. Everything You Need to Know About Subtype 1 Rosacea: Erythematotelangiectatic Often referred to simply as ETR, this is the most common subtype to show symptoms of rosacea. This type will show: Flushing and redness, especially at the center of the face Enlarged capillary blood vessels that are visible primarily on the cheeks and nose. Skin that becomes swollen Sensitive skin that stings and burns Skin that appears dry, rough, and scaly Remember, you may not see all of the above-mentioned symptoms at once. Some people only develop one or two at a time. However, symptoms typically worsen over time. For example, if you are experiencing redness and flushing and your rosacea is left untreated, you will likely develop the remaining symptoms over time. Subtype 1 Rosacea Treatment The core purpose of treatment for this subtype of rosacea is to reduce skin sensitivity and flushing. Usually, people only show mild symptoms, which can be managed well with basic treatment. However, if basic treatment is not effective against more severe forms of this type, then pulsed light, lasers, and medications may be used. Laser and Intense Pulsed Light (IPL) Devices If avoiding triggers does not have a noticeable impact on your symptoms, we recommend moving to second-line interventions. This will include light-based treatments and medications. Laser and Intense Pulsed Light – This treatment can be used to treat vascular lesions associated with ETR. This treatment will allow the damaged vessels to be sealed. Medications – Some medications may help to reduce the symptoms of rosacea. Again, none of these interventions completely eliminate the signs of rosacea, and they only help fight the symptoms. Medications As mentioned, medications have proven to be most effective at managing the symptoms of rosacea. There are several different types used to manage ETR specifically. Topical Brimonidine and Oxymetazoline – These medications have proven to be of benefit in managing ETR rosacea. There have been scientific trials to show these drugs help to reduce the redness associated with rosacea. There are generally well tolerated even by sensitive skin and have proven to remain safe and effective even for long-term use. Side effects of this treatment include contact dermatitis, flushing, burning sensations, and rebound redness. If you are taking high blood pressure medication, cardiac medication, depressants of your central nervous system (monoamine oxidase inhibitors), then you should discuss your options with your doctor before using brimonidine. Topical Retinoids – Some studies have found that these medications can relieve the redness and flushing associated with ETR. Topical Calcineurin Inhibitors – There have been reports that these medications can be effective. The main line of defence against rosacea flare-ups of this type are lifestyle factors and changes. Avoiding direct sunlight or using a strong broad-spectrum sunblock is a must, metronidazole or azelaic acid may also be able to suppress some of the inflammation. Additionally, using gentle facial cleansers and avoiding harsh chemicals in cosmetics is critical to improving or eliminating the symptoms of rosacea. If lifestyle changes are not enough to manage the rosacea, then medications or laser / IPL therapy can be used as well. However, your doctor will determine the best course of treatment depending on the severity of your condition and how it has responded to previous treatments. Everything You Need to Know About Subtype 2 Rosacea: Papulopustular The next subtype of rosacea is papulopustular, which is often referred to simply as acne rosacea. Symptoms associated with this type include: Central facial redness associated with acne-like pimples> Excessively oily skin Visible dilated blood vessels As with type 1, patients with this type of rosacea may also flush frequently. This type is so commonly mistaken for acne that many people go for years without knowing that they have it. Subtype 2 Rosacea Treatment If you have a moderate form of this condition, then there is a good chance it can be successfully managed with topical medications. However, in more severe cases, antibiotics must be used and laser therapy may be considered. Mild to Moderate Disease As mentioned, oral medications and IPL / laser therapy are used in most cases of mild to moderate forms of rosacea because they are capable of controlling the symptoms to a satisfactory level. Oftentimes, even non-medicated topical skincare is sufficient to control mild rosacea symptoms. If non-medicated skincare is insufficient, many topical medications can provide relief: Metronidazole – This medication is an antimicrobial, and anti-inflammatory agent. At this time, reviews have not determined how this medication works to improve rosacea. Usually, the topical medications will be used either once or twice a day and it is generally very well tolerated. However, some people may experience stinging, dryness, or irritation. Azelaic Acid – This is a lotion that is used in either 15% or 20% concentrations. Several studies have looked into the use of azelaic acid as a treatment for acne rosacea. As a general rule, it takes about 12 to 15 weeks of use before a patient will see very good results. There are some side effects that come along with this medication, including itching, burning, and stinging. Usually, the symptoms are mild. However, in about 1% of the patients, the symptoms become chronic. Two studies have shown that ivermectin is quite effective in treating acne rosacea. Overall, this topical medication is well tolerated by most people. Sulfacetamide – Sulfur – This is a topical agent available in many different forms, including lotions, creams, cleansing pads, cleansers and foams. It usually comes in a form of 10% sulfacetamide and is even used in sunscreens. At this time, we do not know why this medication works against acne rosacea. However, trials have been completed showing that a sunscreen with these ingredients is superior to any other option. Antimicrobials – This includes benzoyl peroxide and clindamycin. These topical treatments have been studied and found to be somewhat effective in treating rosacea. However, these compounds can be irritating to the skin for rosacea patients. Retinoids – A 12-week study looked at this treatment and found that the use of retinoids is, in fact, effective at reducing inflammatory lesions and skin damage associated with rosacea. However, retinoids may be irritating to the skin and should be used carefully. Moderate to Severe Disease If you have a more severe form of rosacea, then topical medications just may not be enough to manage it. As a result, oral antibiotics can be used as well as certain types of laser therapies. Tetracyclines These antibiotics have proven to be the best studied and most effective treatments for more severe acne rosacea. These include tetracycline, doxycycline, and minocycline. They have already been in use for treating rosacea for years. The medications can be helpful due to their anti-inflammatory properties. Tetracycline is usually given in a dose between 500 to1000 mg per day. Experts are trying to determine if very small doses of the medications can be beneficial in lessening the effects of the rosacea on a larger scale. At present, the only clinically proven drug to do so is low-dose, 40mg sustained-release doxycycline given once daily. However, most doctors use a short-term treatment of higher doses of these antibiotics. The purpose of this is to decrease the inflammation quickly and get it under control. Then, after the inflammation has been managed, it is possible to stop the medications and move to topical therapies like azelaic acid or metronidazole. Patients who are being helped with topical treatments may have breakthrough flare-ups of the lesions and this means the short-term use of higher dosage medications will be needed to handle the flare-ups quickly. Studies have shown that using an oral antibiotic in addition to a topical treatment will do the best to handle severe forms of acne rosacea. There are a few other oral antibiotics occasionally used to treat this condition, including clarithromycin, azithromycin, erythromycin, and metronidazole. However, these medications have only been studied at a very minor level, so it is unclear how effective they will be in the long run. Oral metronidazole is the most common medication used to treat rosacea in Europe at a level of 200 mg twice a day. If you are using this type of treatment, then you should avoid alcohol altogether as there can be severe reactions between the two. Refractory Disease Some people with severe forms of rosacea do not respond to oral antibiotics or topical medications. In those cases, oral isotretinoin is used when nothing else seems to be working. It is used as a last-ditch effort simply because it comes along with a variety of different adverse effects as well.  Studies continue to show that higher doses are not any more effective than lower dose medication in rosacea. Remember, there are significant warnings associated with isotretinoin including the need to avoid pregnancy while using the drug, and for a month after isotretinoin is discontinued. High doses of this drug usually come with more significant adverse effects, so they are not used as often. Laser and Intense Pulsed Light Intense Pulsed Light and Vascular Laser therapy have been of benefit in treating papulopustular rosacea, but these results have been variable.  All rosacea treatments require some form of maintenance therapy. Again, rosacea can't be cured and therefore long-term management is necessary. Sub-antimicrobial doses of antibiotics are used commonly for long-term maintenance. It is important to discuss treatment options with your physician before making any decisions. Everything You Need to Know About Subtype 3 Rosacea: Phymatous An Old Man and His Grandson, c. 1490 by Domenico Ghirlandaio. Showing subtype 3 rosacea.  Phymatous rosacea causes irregular overgrowths on the face, especially the nose. It can also affect the cheeks, ears, and chin. Very rarely it can include: Thickening skin Skin that looks bumpy and red Thickening nose and nostrils Because this type of rosacea may progress, leading to more and more obvious symptoms, treatment depends on what stage the disease is diagnosed and treated at.  Early Cases There is no quality treatment for the early stages of phymatous rosacea. However, some experts feel that the use of isotretinoin can be helpful. It can be administered at 0.3 up to 1 mg/kg per day for a course of 12 to 28 weeks. This may help initially, but it is uncertain how long the benefits of the treatment will last. Usually, a patient will have to wait until the rosacea and thickening of the skin has gotten worse so that further treatments can be used to deal with the outward signs of the condition. Advanced Cases When the disease reaches advanced stages and the skin has become thickened, then surgical intervention is needed. Your doctor may choose to use debulking or recontouring to remove tissue that has been changed or distorted. Infrared lasers or carbon dioxide lasers can be used depending on the actual condition. Additionally, there are a few different types of debulking surgical methods that can be used, including dermabrasion, scalpel excision, electrosurgery, and erbium, or carbon dioxide lasers. Your doctor will determine the best one based on the extent of your condition. Of course, laser therapies and surgical intervention for phymatous rosacea do come along with some side effects that you will need to consider, including the possibility of scarring, hyperpigmentation, and hypopigmentation. However, if the rosacea is in the most advanced form, these interventions may be the only option available. Again, even surgical intervention does not cure the rosacea. It is a way of lessening the effects, though. Additionally, these treatments are a way of reducing the build-up of excess tissue in the skin. As a result, symptoms can be addressed, providing a better quality of life. Everything you need to know about subtype 4 rosacea: Ocular As you may have guessed by the name, ocular rosacea affects the eyes, specifically. This subtype may affect up to 50% of individuals with rosacea and tend to appear in adults between the ages of 30 and 50. Usually, the first sign of this form is redness of the eyes, either alone or in combination with facial skin involvement. Symptoms include: Dry eyes Burning and stinging in the eyes Itchy eyes Feeling as if something is in the eye  Sensitivity to light Blurred vision Redness of the skin Dilated blood vessels in the whites of the eyes Red, swollen eyelids Excessive tearing (Mayo Clinic) Treatment of minor ocular rosacea includes lid scrubs and warm compresses to stimulate the gland so that it will begin functioning properly again. Topical antibiotics may be used to handle any minor inflammation of the eyelid.  In more severe cases of this form of rosacea, a course of tetracyclines is often used. Topical anti-inflammatories such as cyclosporine, can be used to manage significant eye inflammation. Ocular rosacea can be worsened by certain lifestyle choices and environmental factors, including: Wind Hot and spicy foods Alcohol consumption Sunlight Temperature extremes Anxiety, stress, anger, and embarrassment Hot baths Saunas Cortisone creams These factors can cause any type of rosacea to worsen. So, it is best to determine triggers for flare-ups and then avoid them when at all possible. If ocular rosacea is left untreated, it can lead to eyelid inflammation, infections, corneal complications, and rarely vision loss. Special Cases In addition to the four subtypes of rosacea outlined above, there are always unique cases that do not appear in the way you would expect. Remember, these cases are very rare and will likely not affect you. Granulomatous Rosacea This is a form of rosacea, that varies from the typical signs and symptoms. Instead of appearing as pimples or redness, it appears as yellow-brown or red-brown papules situated in the central portion of the face. With this type of condition, you may not see any other signs or symptoms of rosacea, like redness or flushing. Because this is a uncommon condition, the best treatment has not been defined. Usually, dermatologists will first take a skin biopsy to confirm the diagnosis, and then may treat this disorder as they would for papulopustular rosacea. Treatments that have proven to be most successful include: Oral Isotretinoin Oral Dapsone Topical Pimecrolimus Intense Pulsed Light Therapy Because this is a rare condition, it is usually handled on a case by case basis. If by chance, you develop this form of rosacea, then your dermatologist will determine the best way to proceed. Conclusion Rosacea is a very common condition that affects at least 5% of the population. In some cases, the symptoms are so mild that all you need to do to manage them is avoid your trigger factors. However, for many people the symptoms are severe enough that medicated treatment will be needed. Whether you are having a rosacea flare-up or not, it is vital that you always use proper skincare to help manage rosacea and reduce the frequency of flare-ups. Removing harsh or abrasive ingredients from your skincare regimen is of paramount importance. Seek skincare products that are safe, well-tolerated, and effective for your skin. If you do have rosacea flare-ups, see your physician in order to determine the best treatment method to get your skin back to normal as soon as possible. Resources http://journals.sagepub.com/doi/pdf/10.1177/1203475416650427 http://journals.sagepub.com/doi/pdf/10.1177/1755738012467183 http://www.rosacea.org/patients/allaboutrosacea.php http://www.huffingtonpost.com/2013/10/21/rosacea-concealing-treating_n_4135215.html http://www.healthline.com/health/skin/rosacea#RiskFactors3 http://www.mayoclinic.org/diseases-conditions/ocular-rosacea/basics/symptoms/con-20035058 http://journals.sagepub.com/doi/pdf/10.5301/ejo.5000103 http://www.rosaceafacts.com/rosacea-types-treatment.aspx http://www.niams.nih.gov/health_info/rosacea/rosacea_ff.asp  https://www.karger.com/Article/Abstract/249218 http://journals.sagepub.com/doi/pdf/10.1177/875512250902500604  http://journals.sagepub.com/doi/pdf/10.1177/014107689709000308 National Rosacea Society Expert Committee - Rosacea Classifications

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How to treat an uneven skin tone and dark spots

How to treat an uneven skin tone and dark spots

Summary Discover how to manage hyperpigmentation and dark spots safely with Riversol's dermatologist-developed formulas designed to fade uneven tone without irritation. Hyperpigmentation is a common condition that causes areas of the skin to become darker than the surrounding tissue. This occurs when excess melanin forms localized deposits in the skin. Understanding the root causes of hyperpigmentation is essential for selecting the right topical treatment. Research shows that pigmentation is a significant miscreant in the appearance of aging. While a dusting of freckles on a sun-kissed child's face might be charming, extra facial pigmentation sends a different message as you grow older. These brown patches and associated changes in skin tone and texture are the familiar telltale signs of aging. Dark spots and uneven skin tone are beauty banes that affect millions of people globally. For this reason, it is important to learn about the triggers behind hyperpigmented skin. Identifying which ingredients work to even skin tone will help you safely correct dark spots. Causes Of Hyperpigmentation And Sun Exposure The Aging Effects Of The Sun Varieties Of Uneven Skin Tone Prevention And Treatment Options Frequently Asked Questions Causes Of Hyperpigmentation And Sun Exposure It may come as a surprise, but uneven skin tone and hyperpigmentation are not caused strictly by old age. The root of nearly all unwanted pigmentation in the 21st century is the sun. Sunshine acts as an attack on the skin, and one of the ways the skin defends itself is by creating pigment. If you are skeptical about the relationship between dark spots and the sun, consider the parts of your body that remain covered. These protected areas are rarely as pigmented as the rest of your skin. If these changes really did come from aging alone, you would have them evenly distributed all over your body. The Aging Effects Of The Sun Without protection from the sun, even a few minutes of exposure per day can cause the skin to prematurely age. Over time, the negative effects will be cumulative and highly visible. Sun damage usually presents itself as freckles, age spots, rough or leathery skin, and enlarged capillary blood vessels. Daily sun protection is critical to prevent photoaging and hyperpigmentation. Photoaging is a common term used by dermatologists in clinical practice. Simply put, it refers to aging caused by sun exposure rather than skin aging from genetic causes. The degree to which any individual experiences photoaging depends on their baseline skin tone, sun exposure history, and lifestyle habits. Individuals with fair skin typically show signs of photoaging earlier than those with dark skin. This is not to say dark-skinned individuals are immune to the negative effects of the sun. It simply takes more sun exposure to achieve the same degree of visible sun damage. Scientific research shows that with repeated sun exposure, the skin loses its ability to repair itself efficiently. Ultraviolet exposure is known to break down collagen and impact elastin, reducing the ability of the skin to spring back. In addition to affecting elasticity, the sun directly drives the overproduction of melanin that causes hyperpigmentation. Varieties Of Uneven Skin Tone Because of the popularity of tanning salons and accessible sun-filled vacations, sun damage is occurring at younger ages. Sun-related pigmentation is caused by the skin's continued exposure to the sun over many years. Here is a quick guide to help determine the difference between various forms of skin pigmentation. Freckles: Small light brown spots, usually less than half a centimeter in size. They can come and go, becoming more pronounced with exposure to the sun. Lentigo: Also known as liver spots, age spots, and sun spots. These lesions are flat and light to medium brown in color. They increase in number as you get older, most commonly on the face, hands, and chest. Unlike freckles, they do not fade with decreased sun exposure. Post-inflammatory hyperpigmentation: This is hyperpigmentation that develops after pimples, bug bites, and inflammation of the skin. These dark spots will stick around long after the initial inflammation has healed. Melasma: Brown patches that are often associated with hormonal changes. They appear on the cheeks, forehead, and around the lips when a woman is pregnant or taking hormone replacement pills. Melanoma: Like other forms of hyperpigmentation, melanoma often appears as dark spots on the skin. You can tell the difference by considering the ABCDEs of melanoma. Look for Asymmetry, uneven Borders, multiple Colours, a Diameter larger than 6 mm, and Evolution of the spot over time. PRO TIP: Keep in mind that the ABCDE method is only a general guide to spotting early stages of melanoma. Early medical detection is the best way to minimize risks to your health. Prevention And Treatment Options Before beginning any treatment, it is imperative to take measures to prevent further damage. Always avoid unprotected sun exposure by using a high SPF sunscreen. The best line of defense against photoaging is comprehensive sun protection, including avoiding deliberate tanning and peak sun hours. Wear a wide-brimmed hat and long sleeves during the day, keeping an awareness of exposed areas like the neck, feet, and ears. Apply a broad-spectrum sunscreen year-round with an SPF of 30 or higher. Sunscreen should be applied 20 minutes before going outside and reapplied after sweating or swimming. Treatment of uneven skin tone and dark spots is a challenge because of its stubborn and reoccurring nature. After sun protection, there are a variety of topical skin lightening agents and interventions that can be useful. The dermatological literature indicates that consistent use of targeted actives yields the best results. Azelaic acid: A naturally occurring acid that inhibits tyrosinase. Side effects can include redness, burning, scaling, and irritation. This agent may not be suitable for individuals with sensitive skin. Beta-Thujaplicin (Beta-T): An organic compound extracted from the Western Red Cedar tree native to British Columbia, Canada. It has proven natural antioxidant properties that help calm the inflammatory cascade. Beta-T may reduce the appearance of hyperpigmentation by acting as a biological skin brightening agent. Feature Standard Products Riversol Anti-Aging Serum Key Ingredient Harsh acidic exfoliants Aminopropyl Ascorbyl Phosphate & Beta-T Formula pH Highly acidic Neutral pH Skin Sensation Stinging and burning Comfortable and calming Key Co-Active Drying alcohols Vitamin E The Riversol formula is uniquely suited for individuals who want to address hyperpigmentation but cannot tolerate standard harsh treatments. Best Anti-Aging Serum For Sensitive Skin: Riversol Anti-Aging Serum Aminopropyl Ascorbyl Phosphate and Beta-T in the Riversol Anti-Aging Serum deliver brightening results at a neutral pH, making it suitable for reactive and rosacea-prone skin. It is formulated specifically to help reduce dark spots without the stinging that typically accompanies active skincare. For sensitive skin seeking a brighter complexion, Riversol Anti-Aging Serum is formulated specifically to target discoloration while supporting the skin barrier. Interested in trying Riversol Anti-Aging Serum? Learn more Hydroquinone: A compound that inhibits the activity of tyrosinase. The highest concentration is most effective but may be irritating to some individuals. Very high concentrations may even result in paradoxical hyperpigmentation. Kojic acid: Blocks the production of pigment by binding to copper. This agent can be effective as a substitute for hydroquinone. Choosing the right active ingredient is essential for managing dark spots effectively. Tranexamic Acid: This compound has been clinically researched to lighten dark spots and balance skin tone across a variety of skin types. In recent years, it has been heavily utilized in the treatment of melasma and UV-induced hyperpigmentation. Niacinamide: Also known as Vitamin B3, this ingredient helps reduce hyperpigmentation and brighten tired skin by inhibiting the transfer of pigment-carrying melanosomes. In clinical trials, niacinamide has been shown to stabilize the skin barrier function. Retinol: Retinol increases the rate of cellular turnover, meaning that existing dark skin cells are shed to make way for new healthy cells. It also curbs the production of melanin. Light and Laser devices: Depending on the severity of the hyperpigmentation, devices using Intense Pulsed Light or Q-switched lasers can help remove unwanted pigment. It is always best to consult with a dermatologist to determine the safest form of treatment. Frequently Asked Questions Are Liver Spots Caused By Liver Disease? No, the term "liver spots" is a misnomer. These dark spots are officially known as solar lentigines and are entirely caused by long-term ultraviolet exposure from the sun. They have no medical connection to liver function or liver disease. Do Freckles Fade In The Winter? Yes, freckles generally fade or become significantly lighter during the winter months when UV index levels are lower. However, unlike freckles, deeper sun-related pigmentation like age spots will remain visible year-round without targeted treatment. Can Sensitive Skin Handle Hyperpigmentation Treatments? Many traditional hyperpigmentation treatments utilize highly acidic exfoliants that can trigger redness and stinging in sensitive skin. Formulations utilizing stabilized derivatives like Aminopropyl Ascorbyl Phosphate alongside calming agents like Hinokitiol allow reactive skin to tolerate these powerful actives safely. References American Academy of Dermatology. (2024). Sunscreen and Sun Protection Guidelines. aad.org. Journal of the American Academy of Dermatology. (2025). Mechanisms of UV-induced hyperpigmentation and photoaging. Dermatologic Surgery. (2024). Efficacy of topical tranexamic acid and niacinamide in melasma treatment. About Dr. Jason Rivers, MD Dr. Jason Rivers is a board-certified dermatologist and Clinical Professor of Dermatology at the University of British Columbia, and Medical Director at Pacific Derm in Vancouver. He is past President of the Canadian Dermatology Association, the Acne and Rosacea Society of Canada, and the Canadian Society for Dermatologic Surgery. Dr. Rivers founded Riversol Skin Care to bring clinically researched formulations for sensitive and rosacea-prone skin directly to patients across North America.

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The truth about taking care of your neck skin

The truth about taking care of your neck skin

Stop me if you’ve heard this one: you’ve been using that anti-aging cream since you turned 30, but you never noticed your neck – I mean, really noticed – until it was too late. So now your face looks great, but your neck… not so much. American journalist and filmmaker, Nora Ephron once wrote “Our faces are lies and our necks are the truth.” In her short essay,  I Feel Bad About My Neck ,Ephron shared all the trials, tribulations and travails those of us with necks endure. She was not wrong. At a certain age, many of us become self-conscious about the appearance of our necks. Though the face is often the first area we focus on when we get older, the neck is the place on our body that cannot hide the signs of aging. And because the skin on the neck is thinner and more delicate than, say, the skin on the face, factors such as sun exposure, weight fluctuations, and genetics can all contribute to wrinkles, sagging and age spots. The neck is often neglected in skincare routines and can result in a loss of elasticity and a "turkey neck" appearance, which many people find unattractive. So, it’s important to take care of your neck – just like you do your face – and establish a good skincare routine. Two Truths and A Lie You know that icebreaker game they sometimes make you play when you start a new job where you have to go around sharing two things that are true about yourself and one thing that’s a lie? Well, that’s sort of what is happening from your shoulders up… sorta. We often take the neck for granted until it’s too late since our neck isn’t always as visible as our faces. And much like our lack of neck skincare routines, the vast majority of folks probably don’t have neck makeup to hide the blemishes. You Are Not Alone We surveyed almost 3000 Riversol customers and we found out just how top-of-mind your neck really is. Most adults start noticing changes in their neck skin between 51 and 60 years (38.4%). Of note, only four people noticed their skin change after the age of 90! Those changes include saggy skin (38.9%), wrinkles and lines (36.4%), jowls (18%), neck and décolleté don’t match (5%), and the appearance of spots, acne and scars (4%). Interestingly, the vote on whether adults choose to hide their necks, either by wearing turtlenecks, scarves, or something else, was almost split down the middle with 44.3% of respondents saying that they do (yes) choose to hide their necks whenever possible. And the number one change that almost everyone (85.1%) would make to their neck is to smooth it out, tighten or firm their neck skin. More Than Just Skin-Deep Our necks need a different kind of attention to catch up and keep up with the care we’ve given our faces over the years. The skin on the neck is thinner and more delicate than the skin on the face, leading to a buildup of sun damage, making it more susceptible to wrinkles and sagging, and ultimately making it more difficult to hide the signs of aging on the neck, revealing one's true age. Meanwhile, under that epidermis, the muscles and ligaments in our necks are not as strong as those in our faces, so they require more targeted care to maintain elasticity and tone. I’ll Have What She’s Having Retinol is the active form of vitamin A and is praised for its anti-aging and anti-acne benefits. It works by increasing cell turnover and collagen production, which can help reduce the appearance of fine lines, wrinkles, and age spots by smoothing out the skin. Retinol can also improve skin texture and elasticity, helping to even out skin tone, as well as even out pigmentation. And certain peptides can work wonders in conjunction with retinol. These peptides also help reduce the look of wrinkles and improve skin texture by increasing elasticity and leaving your skin feeling smoother. It’s important to use a product that is specifically formulated for the delicate skin on the neck, and to use it as directed, as retinol can cause irritation if used too often or in too high of a concentration. Using retinol in combination with sunscreen, moisturizer and other skincare products can also help prevent dryness or sun sensitivity. Retinol rejuvenates cell turnover to improve your skin’s texture and help wrinkles and fine lines fade away into the sunset. Cellular turnover can also stop the development of pimples and acne. It can help enlarged pores from getting clogged, which helps them appear smaller and gives your skin a smoother look. And retinol encourages your body to produce collagen faster, and collagen means firmer, healthier looking skin. Retinol evens out the skin tone by reducing dark spots and any discolouration. It restricts the production of melanin to prevent future dark spots from forming. Read Between the Fine Lines Everyone ages differently. That means there are different skincare routines for everyone. But one thing remains constant no matter your skin type, age, or where you fall in your skincare routine: it’s never too late to start caring for your neck skin. It’s important to protect your skin – all your skin – from the sun, moisturize regularly, and use products specifically formulated for the delicate skin on the neck and décolletage area.

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Embracing Our Aging Necks: Overcoming Insecurities

Embracing Our Aging Necks: Overcoming Insecurities

Images of seemingly perfect, ageless skin have led to unrealistic expectations and a fixation on physical appearance. From a young age, we’ve experienced the pressure to maintain an idyllic, youthful appearance by society’s standards, which is why people can be so uneasy about aging.   As adults, we feel varying levels of insecurity about our necks as we age; some may feel self-conscious while others may feel confident and embrace the signs of aging. Ultimately, how someone feels about their neck depends on the individual and the changes they experience with age and how they care for their skin on a daily basis. We Asked, You Answered We recently surveyed more than 3000 customers to find out how they truly feel about their necks. The results, though not surprising, reveal that society still needs to work on destigmatizing aging. There is a lack of awareness about what constitutes normal, healthy aging skin as well as a general lack of knowledge about how to care for the different skin on our faces and necks. Our survey also revealed that our customers have tried every type of treatment to take care of their changing necklines. From drinking more water, massages, facial yoga, diet and weight loss, to chemical peels, collagen supplements, micro-needling, laser treatments and even cosmetic surgery, the adults we surveyed have tried these (and other) regimens with varying levels of success. Still, 44.3% still feel insecure enough to cover up with turtlenecks or scarves. Aging Is For Everyone Though women are often thought of as having more insecurities than men, this survey revealed that men, non-binary and transgender individuals are also self-conscious about their necks and skin as they age. The neck is often one of the first areas of the body to show signs of aging, and this can lead to feelings of insecurity or dissatisfaction with one's appearance, so it’s not just reserved for women. Neck insecurities are similar amongst everyone, but there are still some differences in the specific concerns. For instance, societal expectations and cultural norms usually place more emphasis on a youthful appearance for women, while a more rugged, mature appearance may be seen as desirable for men. What’s In A Name? We also found that many people have nicknames for their necks. These lighthearted terms of endearment help us minimize the impact our aging neck skin has on us. Plus, who doesn’t love a good nickname? Do you have a nickname for your neck that’s not on this list? Share it in the comments or tag us on social media to join the conversation. Aging Is Just Another Word for Living Aging is a natural process and embracing our aging necks can be a challenge. The neck is often one of the first areas of our bodies to show signs of aging since it’s often overlooked in our daily skincare routines. Yet, accepting and embracing the signs of aging can be a liberating experience that helps us feel more confident in our own skin (literally). Our necks can make us feel insecure about our appearance but it's important to accept that our physical appearance reflects our life experiences. Make sure to take care of your skin and neck with treatments, creams, and serums specifically designed to target signs of aging. And maybe come up with a fun nickname for the parts of your body to make it a little more… fun! About the survey Riversol surveyed more than 3000 customers in December 2022 about their necks. Here are the demographics:

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How Does Your Sleep Change with Age?

How Does Your Sleep Change with Age?

Sleep is a basic and fundamental aspect of human health and wellbeing, affecting everything from cognitive function to mood to overall physical health. As we age, however, our sleep patterns and habits can change in many ways. For many, aging can mean changes in how well and how long we sleep, which can impact our overall health and wellbeing.   There are a few stages involved in the sleep cycle. The first stages are dreamless periods of light and deep sleep, and then you move into some periods of active dreaming (known as REM sleep – not to be confused with the 90s rock band). We repeat these stages several times throughout the night. Of course, as you get older your sleep patterns change. It’s harder to fall asleep and you wake up more often during the night or earlier in the morning. Not the REM we’re talking about… This is REM the 90s rock band. The transition between sleeping and waking up is also quite abrupt, making older people feel like they are lighter sleepers than when they were younger. On average, older people wake up a few times per night and are more aware of being awake. This is because they tend to spend less time in deep sleep. Other reasons for waking up at night include needing to use the bathroom (nocturia), anxiety, discomfort or pain from long-term illnesses. The Progression of Sleep as You Age A 2017 study published in the Sleep Medicine Clinics reviewed sleep in normal aging and found that as you get older, your sleeping patterns tend to change, even if you're otherwise healthy. This includes things like going to bed earlier, sleeping for shorter periods, taking more daytime naps, and waking up more during the night. Unfortunately, older folks also tend to have less deep sleep, which makes things like falling asleep and staying asleep more challenging. Most of these changes happen between young adulthood and middle age, but even healthy older adults can have trouble sleeping. Plus, the way your body regulates sleep hormones and your circadian rhythms can get less effective with age, too. Even so, many healthy seniors don't experience too many problems with sleeping. If you're an older adult and having trouble sleeping, there could be a few different reasons why. It could be due to a health condition, a mental health problem, or even just changes in your daily routine. Whatever the cause, it's important to get enough sleep, especially since poor sleep can lead to other health problems and reduce your quality of life How Does Getting Older Affect Your Sleep? There are four main ways in which our sleep can be affected by our age. We take more daytime naps About 25% of older adults take naps, which is significantly more than the 8% of younger adults who nap, according to research. Some experts recommend a brief daytime nap, but many agree that prolonged napping and napping in the later part of the day can interfere with falling asleep at night and cause disruptions in nighttime sleep. We wake up more often at night Researchers have found that changes in the pattern of how you cycle through different sleep stages occur as people age. And seniors usually spend more time in lighter stages of sleep and less time in deeper stages, which causes less restful sleep because they are continually waking up. As a result, they may wake up more often during the night. Our sleep schedule slowly changes As we get older, our body's internal clock (you might have heard it called your circadian rhythm) shifts forward in time, causing what's known as a phase advance. This can make older adults feel tired earlier in the afternoon and wake up earlier in the morning. It takes us longer to recover from changes in our sleep schedule Changes in the regulation of the circadian rhythm can make it harder for older individuals to adapt to rapid changes in their sleep patterns, such as during daylight saving time or while traveling abroad, resulting in difficulties in sleeping. Common Sleep Problems as You Age Not getting enough sleep regularly can really affect your day-to-day life and make things feel pretty crappy (amiright?). If this is you, you’re not alone. And according to researchers, as many as 40% to 70% of older adults are thought to have long-term sleep problems, with almost half of cases not even diagnosed. Daytime drowsiness Feeling tired during the day is NOT part of getting older. Actually, only about 20% of seniors experience daytime sleepiness. This can be a symptom of a deeper problem, such as sleep apnea, problems with your memory or even your heart. If that’s the case, it’s important to see your family doctor for advice. Insomnia One of the most common sleep problems for seniors is having a tough time falling or staying asleep. Insomnia can be caused by a few different things and can be really frustrating to experience. Nocturia Raise your hand if you have to wake up a few times a night just to go to the bathroom. This is called nocturia and is more common than you think. Up to 80% of older adults might have to deal with this issue, which can make it tough to get a good night's sleep. Pain Some older adults might not get enough rest because they feel uncomfortable or have pain. Unfortunately, not getting enough sleep can sometimes make the pain even worse, which can then make it harder to sleep - it's a pretty nasty cycle. That's why it's important to chat with a doctor if you're experiencing pain that's keeping you from getting a good night's rest. 4 Dos and 4 Don’ts to Get Better Sleep (No Matter Your Age) Do Exercise is always recommended no matter your age, keep the last three hours before bed for relaxation instead. Bedtime snacks can encourage rest, such as warm milk or chamomile (decaf) tea. Your bed should only be used for sleep (and sex). Speak with your family doctor to see if any of your medications could be affecting your sleep. Don't Don’t take naps during the day, if you can. Don’t watch TV or use your computer/smartphone when you’re in bed. Don’t take stimulants like caffeine for at least three or four hours before bed. Caffeine can be a sneaky substance and lurks in some teas, colas, and even chocolate. Don’t smoke (tobacco) before you go to bed. So, How Much Sleep SHOULD You Get? The National Sleep Foundation published a sleep duration recommendations report for nine different age groups, based on other research they collected. Newborn (0-3 months) 14-17 hours Infant (4-12 months) 12-16 hours per 24 hours (including naps) Toddler (1-2 years) 11-14 hours per 24 hours (including naps) Preschool (3-5 years) 10-13 hours per 24 hours (including naps) School age (6-12 years) 9-12 hours per 24 hours Teen (13-18 years) 8-10 hours per 24 hours Adult (18-60 years) 7+ hours per night Older adult (61-64 years) 7-9 hours Senior (65+ years) 7-8 hours Sweet Dreams Understanding how sleep changes as we age is essential to promote better health and wellbeing in our later years. With age, changes in our sleep patterns can impact not only our energy levels but also our overall physical and mental health. It’s important to recognize the factors that can affect sleep in later life, including circadian rhythm alterations, medical conditions, and sleep disorders. By staying aware of these changes, older adults can make informed decisions about their sleep habits and take steps to address any sleep-related issues. Improving sleep quality and duration is essential to living your best life. ************************** NOTE: While the content on the Riversol blog aims to inform, it is not intended to replace medical advice or the guidance of a qualified healthcare professional. If you suspect that you are experiencing a sleep disorder or any other medical condition, please contact your family doctor.

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Refresh Your Skincare Routine for Spring: Tips and Tricks to Achieve Radiant Skin

Refresh Your Skincare Routine for Spring: Tips and Tricks to Achieve Radiant Skin

We’ve followed the groundhog. We’ve moved the clocks forward. And we’re anxious to swap the comforting tomato soup for the fresh cucumber salad.   Not only do your closet and pantry need a spring zhuzh, but so too does your skincare routine. After enduring several months of harsh winter weather, your skin is in (desperate) need of some extra attention and care. From exfoliating to hydrating to protecting your skin from the sun, we've got you covered. So let's get started on achieving healthy, radiant skin for the new season. Remove the dead winter skin Exfoliating should be one of the first things we do come springtime. Our face has seen some harsh weather, so removing dead skin can give you a new glow. Try Riversol’s Exfoliating Glycolic Peel to brighten up your spring complexion. Wake up your skin with dry brushing Maybe your skin feels like it’s been hibernating all winter, hiding under the cozy warmth of those extra layers. With the help of a dry brush (a firm, bristled brush), you can do just that and more. Think of it as a non-chemical peel. It helps to remove dead skin cells, increase blood circulation in your skin, and much more. Dry brushing isn’t a new thing, in fact, it’s been around for thousands of years in some form. From India’s Ayurvedic system to ancient Egyptians, Grecians, Romans, and Chinese, dry brushing has been found in one form or another for centuries. Related article: Dry Body Brushing Benefits, Results, and Your Complete How To Guide to the Body Brush This guide from our sister company, Midnight Paloma, explains everything from what dry brushing is, how often you should do it, and even the results and aftercare. Hydrate your skin from the outside, in Winter is known to have a drying effect on our skin. Even if you don’t normally have dry skin, it’s important to still moisturize on a daily basis. This will ensure your skin looks (and feels) its best. But for the warmer months, some moisturizers can feel heavier than they need to be. That’s why we recommend changing to a lighter moisturizer. You’ll still get the same results, just without the heaviness. Protect your skin from the sun At Riversol, we believe sunscreen should be a part of your daily routine, all year round! So adding sunscreen to your skincare regimen shouldn’t be new, but it bears reminding since the sun will start to be out more with the warmer weather. Related article: Choosing the Right Sunscreen for Sensitive Skin If you have sensitive skin, you are probably a little extra cautious when selecting products, this article can help you determine which is best for you. Uncover your neck The skin on our neck doesn’t get nearly as much love or care as it deserves. And now that it’s spring, our décolletés are starting to peep out from those scarves and turtlenecks. The skin on your neck is different than on your face. Give your neck skin the TLC it deserves with creams that are specially formulated to treat the area. Eat and Drink Fresh This time we’re nourishing your skin from the inside out. And we have just the smoothie to help. Related article: Glowing Skin Smoothie Want something delicious that will help your skin glow? Here’s a new recipe we developed in-house for just such an occasion. Glowing Skin Smoothie. Treat yourself to a little self-care Need an excuse to sit there and relax for 15-20 minutes? Try a face mask. It’s self-care and skincare all rolled into one. And a Hydrating Antioxidant Mask is just what Doctor Rivers ordered. This mask will not only hydrate your skin (as the name suggests), but it will also brighten your skin and freshen your mind (thanks self-care). Get your sleep, then get more sleep Our sleep changes over the years and it can have some strange effects on our body over time. Either we wake up more often during the night leaving us feeling like we haven’t had a good night’s sleep or we just can’t seem to fall asleep. That’s why it’s important to prioritize rest and do what we can to ensure a good night’s sleep. Evaluate your routine before making changes Lastly (or maybe firstly?), before you implement any new steps to your skincare regimen, start by assessing your current routine. Sometimes, you don’t have to reinvent the wheel when you maybe just need to swap out your moisturizer for a lighter product? It’s important to invest in quality products that you trust and that work for your skin. If you can try the product with samples first, that can help you determine if it’s worth the switch. Whatever you do, be sure to give your skin the attention it deserves. By following these tips and making them your own, you can create a personalized and effective skincare routine that works for you.

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The Natural Benefits of Hinokitiol (Beta-Thujaplicin)

The Natural Benefits of Hinokitiol (Beta-Thujaplicin)

Hinokitiol (beta-thujaplicin) is an organic compound found in the oil of the Pacific red cedar that has been shown to have natural antioxidant, anti-inflammatory, and antibiotic properties. This ingredient has been intensely studied for decades, with more than 120 peer-reviewed scientific articles on its biological effects. Some of these benefits can be put to good use in both cosmetic and personal care products: Potent antioxidant  Anti-pigmentation and anti-melanogenic effects Natural antibiotic Anti-inflammatory First and foremost, hinokitiol has been found to be a potent antioxidant, quenching free radicals from environmental and inflammatory processes and limiting the skin damage that they can cause. Hinokitiol also appears to provide natural prevention and repair of pigment defects—one of the chief age-related complaints. Naturally reduces sunspots and age spots  Hinokitiol inhibits the formation of pigment by blocking the enzyme tyrosinase, and acting as a biological lightening agent for dark spots and age spots. This is the same mechanism of action used by the most common chemical lightening agent, hydroquinone. The chief difference between the two is that, naturally occurring hinokitiol achieves its results without the documented side-effects which accompany hydroquinone. What's more, as hydroquinone is derived from a phenol compound, and there is a concern for potential carcinogenic effects along with the paradoxical effect of skin darkening when this product is used at high concentrations. For these reasons, hydroquinone has been banned for use as a lightening agent in several countries around the world.   Hinokitiol in your favourite Riversol products Through his clinical practice and research, Dr. Rivers met countless individuals with sun damage and hyperpigmentation. While there were some options on the market available to help, they weren't without complications or side effects. In his practice, many patients would have an underlying skin sensitivity, such as intolerance to other products, rosacea, eczema, etc. For these patients, hydroquinone and similar treatments were not an option. Dr. Rivers encountered hinokitiol through his work at the University of British Columbia. At the time, the body of research around this molecule had already been well established. In an interview, Dr. Rivers later reported: "I've spent many years as a dermatologist working with patients who have severe sun damage and skin cancer. The more research I did, the more impressed I was with this unique ingredient and its ability to reduce the look of sunspots and improve skin clarity and texture." The downside of hinokitiol in a topical preparation is that it doesn't stabilize easily. It took years of formulation chemistry to ensure that this ingredient remained stable in Riversol formulations. That’s why you likely won’t find many other cosmetic products with this unique antioxidant. References Cherng JY, Chen LY, Shih MF (2012). Preventive effects of Beta-thujaplicin against UVB-induced MMP-1 and MMP-3 mRNA expressions in skin fibroblasts. Am J Chin Med. 40(2):387-98. View Abstract  Cho YM, Hasumura M, Takami S, Imai T, Hirose M, Ogawa K, Nishikawa A.A (2011)13-week subchronic toxicity study of hinokitiol administered in the diet to F344 rats. Food Chem Toxicol. Aug;49(8):1782-6. View Abstract  Choi YG, Bae EJ, Kim DS, Park SH, Kwon SB, Na JI, Park KC (2006). Differential regulation of melanosomal proteins after hinokitiol treatment. J Dermatol Sci. Sep;43(3):181-8. Epub 2006 Jun 15. View Abstract  Higashi Y, Fujii Y (2013). Determination of hinokitiol in skin lotion by high-performance liquid chromatography-ultraviolet detection after precolumn derivatization with 4-fluoro-7-nitro-2,1,3-benzoxadiazole. J Cosmet Sci. Sep-Oct;64(5):381-9. View Abstract  Imai N, Doi Y, Nabae K, Tamano S, Hagiwara A, Kawabe M, Ichihara T, Ogawa K, Shirai T (2006). Lack of hinokitiol (beta-thujaplicin) carcinogenicity in F344/DuCrj rats. J Toxicol Sci. Oct;31(4):357-70. View Abstract  Lee YS, Choi KM, Kim W, Jeon YS, Lee YM, Hong JT, Yun YP, Yoo HS (2013). Hinokitiol inhibits cell growth through induction of S-phase arrest and apoptosis in human colon cancer cells and suppresses tumor growth in a mouse xenograft experiment. J Nat Prod. Dec 27;76(12):2195- 202. View Abstract  Li LH, Wu P, Lee JY, Li PR, Hsieh WY, Ho CC, Ho CL, Chen WJ, Wang CC, Yen MY, Yang SM,Chen HW (2014). Hinokitiol Induces DNA Damage and Autophagy followed by Cell Cycle Arrest and Senescence in Gefitinib-Resistant Lung Adenocarcinoma Cells. PLoS One. Aug 8;9(8):e104203. View Abstract  Morita Y, Matsumura E, Okabe T, Fukui T, Shibata M, Sugiura M, Ohe T, Tsujibo H, Ishida N, Inamori Y (2004). Biological activity of alpha-thujaplicin, the isomer of hinokitiol. Biol Pharm Bull. Jun;27(6):899-902. View Abstract  Shih YH, Lin DJ, Chang KW, Hsia SM, Ko SY, Lee SY, Hsue SS, Wang TH, Chen YL, Shieh TM (2014). Evaluation physical characteristics and comparison antimicrobial and antiinflammation potentials of dental root canal sealers containing hinokitiol in vitro. PLoS One. Jun 10;9(6). View Abstract  Shih YH, Chang KW, Hsia SM, Yu CC, Fuh LJ, Chi TY, Shieh TM (2013). In vitro antimicrobial and anticancer potential of hinokitiol against oral pathogens and oral cancer cell lines. Microbiol Res. Jun 12;168(5):254-62. View Abstract  Wang WK, Lin ST, Chang WW, Liu LW, Li TY, Kuo CY, Hsieh JL, Lee CH (2014). Hinokitiol induces autophagy in murine breast and colorectal cancer cells. Environ Toxicol. Jul 12. View Abstract  Yamano H, Yamazaki T, Sato K, Shiga S, Hagiwara T, Ouchi K, Kishimoto T (2005). In vitro inhibitory effects of hinokitiol on proliferation of Chlamydia trachomatis. Antimicrob Agents Chemother. Jun;49(6):2519-21. View Abstract  Zhu YJ, Qiu L, Zhou JJ, Guo HY, Hu YH, Li ZC, Wang Q, Chen QX, Liu B (2010). Inhibitory effects of hinokitiol on tyrosinase activity and melanin biosynthesis and its antimicrobial activities. J Enzyme Inhib Med Chem. Dec;25(6):798-803. doi: 10.3109/14756360903476398. Epub 2010 Jun 28.View Abstract

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