We often hear about “forever chemicals” (PFAS) in our drinking water or food, but new research highlights another overlooked entry point into our bodies: our skin.
PFAS are synthetic, highly durable chemicals used in everything from waterproof jackets to daily cosmetics. While long thought to stay on the surface, toxicologists are revealing how these chemicals can be absorbed through the skin, enter the bloodstream, and accumulate over time.
Key Highlights from Recent Studies
Cosmetics & Skincare: High levels of PFAS are frequently found in waterproof, long-wear, and smudge-proof products like foundations, mascaras, and sunscreens.
The “Skin Reservoir”: While some short-chain PFAS enter the blood quickly, longer-chain compounds can get trapped in the skin layers—continuing to release into the body even after you wash the product off.
Beyond Makeup: Synthetic sweat can draw PFAS out of treated clothing (such as water-resistant activewear or school uniforms), allowing them to pass through the skin barrier.
How to Protect Yourself Daily
Check the Label: Look out for ingredients with “fluoro” or “fluor” in their names, or opt for products explicitly labeled “PFAS-free.”
Rethink “Long-Wear”: Save heavy-duty, waterproof, or 24-hour long-wear cosmetics for special occasions rather than daily use.
Keep Dust at Bay: Regular dusting and vacuuming at home can cut household dust PFAS concentrations by up to 66%.
Source: Medscape / Environmental Health Research
