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Ferulic Acid, Resveratrol, and the Role of Antioxidants in Skincare

By Aristotle Cosmetics. . 6 min read.

Antioxidant is one of the most frequently used words in skincare. Behind it is a genuine area of skin biology, along with a great deal of marketing. This guide explains what antioxidants do, what the evidence says about three well-known examples, and how to think about them in an everyday routine.

What antioxidants are

Antioxidants are molecules that can neutralize free radicals, also called reactive oxygen species. Free radicals are unstable because they carry an unpaired electron, and they react readily with whatever is around them. Your skin has its own antioxidant network, including vitamins C and E and the molecule glutathione, to keep these reactions in check.

Oxidative stress and skin

When free radical production outpaces the skin’s defenses, the result is called oxidative stress. Ultraviolet radiation is a major source, and pollution and other environmental exposures contribute too. Scientific reviews describe how oxidative stress can damage lipids, proteins and DNA in skin cells and is considered one of the processes involved in visible skin aging. Topical antioxidants are studied as one way to support the skin’s own defenses.

Ferulic Acid

Ferulic acid is a plant-derived phenolic compound found in grains, fruits and vegetables. It is an antioxidant in its own right, and it is especially known for its partnership with vitamins C and E. In a laboratory study on skin, adding ferulic acid to a solution of vitamins C and E improved the chemical stability of the solution and doubled its protection against ultraviolet damage. Reviews of ferulic acid describe its antioxidant properties and its use in cosmetic formulations.

Resveratrol

Resveratrol is a polyphenol found in grapes, berries and other plants. It is widely studied for its antioxidant activity, and a review of its cosmetic and dermatological uses describes growing interest in it as an active ingredient. The same review notes practical challenges, such as stability and how well it penetrates skin, which is why formulation matters.

Glutathione

Glutathione is a small molecule made by the body and is one of its most important internal antioxidants. It has received attention in skincare, particularly for skin tone. A dermatology review of the evidence, however, describes the support for these uses as limited and in some areas controversial, especially for forms taken by mouth or injection. In a topical formula, glutathione is best understood as one contributor to an antioxidant blend rather than a stand-alone solution.

Ingredient research versus finished products

Much of what we know about antioxidants comes from studies of single ingredients, often in laboratory settings or in specific test formulas. Those findings are valuable, but they do not prove that any finished product containing the same ingredient will produce the same result. Concentration, stability, packaging and the full formula all matter. We keep that distinction clear when we describe our own products.

Fitting antioxidants into an everyday routine

Antioxidant serums are usually applied after cleansing and before moisturizer. In the morning, they are commonly paired with sunscreen, which remains the most important daily step for protecting skin from the sun. Dermatologists recommend a broad-spectrum sunscreen with an SPF of 30 or higher for exposed skin.

Brightening Silk Glass Serum includes Ferulic Acid, Resveratrol and Glutathione as part of its highlighted antioxidant and conditioning ingredients, together with two forms of vitamin C. Read more in The Science Behind Brightening Silk Glass Serum.

This article is for general education and is not medical advice. If you have a skin condition, known allergies, or concerns about an ingredient, speak with a qualified healthcare professional.

Sources

  1. Rinnerthaler M, et al. Oxidative stress in aging human skin. Biomolecules. 2015;5(2):545-589. https://pubmed.ncbi.nlm.nih.gov/25906193/
  2. Lin FH, et al. Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin. Journal of Investigative Dermatology. 2005;125(4):826-832. https://pubmed.ncbi.nlm.nih.gov/16185284/
  3. Zduńska K, et al. Antioxidant properties of ferulic acid and its possible application. Skin Pharmacology and Physiology. 2018;31(6):332-336. https://pubmed.ncbi.nlm.nih.gov/30235459/
  4. Ratz-Łyko A, Arct J. Resveratrol as an active ingredient for cosmetic and dermatological applications: a review. Journal of Cosmetic and Laser Therapy. 2019;21(2):84-90. https://pubmed.ncbi.nlm.nih.gov/29737899/
  5. Sonthalia S, Daulatabad D, Sarkar R. Glutathione as a skin whitening agent: facts, myths, evidence and controversies. Indian Journal of Dermatology, Venereology and Leprology. 2016;82(3):262-272. https://pubmed.ncbi.nlm.nih.gov/27088927/
  6. American Academy of Dermatology. How to apply sunscreen. https://www.aad.org/public/everyday-care/sun-protection/shade-clothing-sunscreen/how-to-apply-sunscreen