Article last updated: October 15, 2024
Quercetin, also known by its chemical name 4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-, is a naturally occurring flavonoid found in a variety of fruits, vegetables, and grains. Common sources include apples, onions, berries, and red wine. In the world of cosmetics, quercetin is prized for its antioxidant and skin conditioning properties, making it a popular ingredient in skincare formulations.
Historically, quercetin has been recognized for its health benefits long before it found its way into cosmetic products. Traditionally, it was used in herbal medicine for its anti-inflammatory and antihistamine effects. Its journey into the cosmetic industry began as researchers started to uncover its potent antioxidant capabilities, which help protect the skin from oxidative stress and environmental damage.
The production of quercetin for cosmetic use typically involves extracting it from natural sources through a process of solvent extraction and purification. This ensures that the quercetin used in skincare products is of high purity and efficacy. By incorporating quercetin into their formulations, cosmetic brands aim to leverage its natural properties to enhance skin health and appearance.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Quercetin:
Quercetin is celebrated for its antioxidant properties. In simple terms, this means it helps to neutralize free radicals—those pesky molecules that can cause damage to your skin cells. By doing so, Quercetin can help to protect your skin from the harmful effects of environmental stressors like pollution and UV radiation. This protection can potentially slow down the visible signs of aging, such as wrinkles and fine lines, keeping your skin looking youthful and vibrant.
Another key benefit of Quercetin is its skin conditioning capability. This means it helps to improve the overall appearance and feel of your skin. Quercetin can enhance skin texture, making it smoother and more supple. It also aids in maintaining skin hydration, ensuring that your skin stays moisturized and healthy-looking. This makes it a valuable ingredient in a variety of skincare products, from moisturizers to serums.
Note: The listed benefits above are exclusively based on the officially recognized and defined functions of the ingredient, as documented by the International Nomenclature of Cosmetic Ingredients (INCI).
Quercetin is generally considered safe for topical application, but as with any cosmetic ingredient, it is important to be aware of potential side effects and other considerations.
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of quercetin during pregnancy are lacking. Therefore, it is advisable for these individuals to consult a healthcare professional for further advice before using products containing quercetin.
Adverse reactions to quercetin are relatively uncommon, but they can occur. To minimize the risk of experiencing any side effects, it is recommended to conduct a patch test before widespread usage.
Quercetin has a comedogenic rating of 1, meaning it is very unlikely to clog pores. This makes it a suitable option for individuals who are prone to acne, blemishes, or breakouts.
