The Beauty Industry’s PFAS Problem
Foundation, mascara, lipstick, eyeshadow, sunscreen, moisturizer—the personal care products millions of people apply to their skin and lips daily may contain PFAS compounds that absorb through the skin and accumulate in the body. Unlike PFAS in drinking water—an involuntary, largely hidden exposure—cosmetic PFAS represents a voluntary exposure that consumers can theoretically choose to avoid. But exercising that choice requires accurate product labeling, comprehensive ingredient disclosure, and the ability to identify PFAS among the dozens of complex chemical names on product ingredient lists—a challenge that most consumers cannot practically meet.
How PFAS Are Used in Cosmetics
PFAS serve multiple functions in cosmetic formulations. Polytetrafluoroethylene (PTFE) powder—essentially micronized Teflon—is used in foundations, powders, and blushes to provide a silky, smooth texture and improve product spreadability. Perfluorodecalin and similar perfluorinated compounds are used in skincare formulations for their oxygen-carrying capacity and skin hydration properties. Fluorinated acrylate polymers in mascara and eyeliner provide water resistance and smudge prevention. Perfluorooctyl triethoxysilane and related compounds are used in long-wearing lipstick formulations for their adhesion properties.
A 2021 study published in Environmental Science and Technology Letters analyzed 231 cosmetics products purchased in the United States and Canada and found that 56% of foundations, 48% of lip products, 47% of mascaras, and 55% of eye products contained detectable PFAS based on total fluorine measurement. Products marketed as “long-lasting” or “water-resistant” showed particularly high PFAS prevalence, consistent with functional roles of PFAS in durability performance claims.
Dermal Absorption and Body Burden Contribution
The skin is a partial barrier but not an impermeable one, and PFAS absorption through skin from cosmetics is an active area of research. Studies using skin absorption models and in vitro human skin tissue preparations have demonstrated that short-chain PFAS penetrate skin more readily than long-chain PFAS due to their smaller molecular size and higher water solubility. For products applied to mucous membranes—lip products, eye products—absorption rates may be higher than for products applied to intact facial skin. Ingestion of lip product residuals represents an additional exposure pathway for lip-applied cosmetics containing PFAS.
Occupational exposure among professional makeup artists, cosmetologists, and salon workers who apply cosmetics to clients repeatedly throughout workdays is a higher-exposure scenario than consumer use. Body burden studies of professional makeup artists have found PFAS blood concentrations elevated relative to matched general population controls, suggesting that occupational cosmetic PFAS exposure contributes meaningfully to total PFAS body burden in this workforce.
Regulatory Action and Industry Response
California’s AB 2771—the Safer Cosmetics Act—requires disclosure of ingredients in cosmetics sold in California, with PFAS as a priority chemical class. Denmark, Sweden, and Germany have enacted or proposed PFAS restrictions specifically targeting cosmetic uses, and the EU’s PFAS restriction proposal would comprehensively restrict PFAS in personal care products across the European market. The FDA has historically not regulated cosmetic ingredients as stringently as pharmaceuticals in the United States, but the Modernization of Cosmetics Regulation Act (MoCRA) of 2022 strengthened FDA’s cosmetic oversight authorities, and PFAS in cosmetics has been flagged as a priority for FDA’s updated regulatory focus. Major cosmetics companies including Sephora, L’Oréal, and Estée Lauder have announced PFAS phase-out commitments or ingredient transparency initiatives in response to consumer and regulatory pressure.