PFAS (per- and polyfluoroalkyl substances) appear in roughly half of tested cosmetics, especially waterproof/long-lasting formulas like mascara (82%), foundations (63%), and liquid lipsticks (62%). Brands add them intentionally for water resistance, spreadability, and durability – but these persistent “forever chemicals” bioaccumulate and may pose health risks.
Why PFAS in makeup?
PFAS excel at repelling water/oil and forming smooth films:
- Waterproofing: Mascara/eyeliner won’t run in sweat/rain.
- Longevity: Foundation/lipstick stays put 8-16 hours.
- Spreadability: Silky application without pilling.
- Texture: Matte/shiny finishes, emulsifiers/stabilizers.
Often unlabeled; fluorine levels indicate intentional addition.
Common PFAS in cosmetics
| PFAS Type | Function | Found In |
|---|---|---|
| PTFE (Teflon) | Film-former | Foundation, powders |
| Perfluorooctyl triethoxysilane | Surface modifier | Mascara, primer |
| Perfluorononyl dimethicone | Silicone alternative | Lip products |
| Perfluorohexane | Solvent | Liquid foundations |
Health & environmental concerns
- Bioaccumulation: Absorbed via skin/ingestion (lipstick); detected in blood.
- Disruption: Hormone/endocrine links (animal data).
- Carcinogen: Some (PFOA) IARC Group 1.
- Environmental: Wastewater persistent, contaminates water/food.
Regulation status
- US: FDA monitors but no ban; MoCRA mandates PFAS safety report by 2025.
- EU: Some restricted (PFOA); labeling varies.
- CA: Bans certain PFAS in cosmetics (2025+).
How to avoid PFAS
- Scan INCI for PTFE, perfluoro-, fluorosilicones.
- Choose PFAS-free/water-resistant certified.
- Avoid “long-wear/waterproof” unless verified clean.
- Opt mineral/natural brands (less likely).
Bottom line
PFAS deliver mascara/foundation performance consumers demand – waterproof, smudge-proof – but at potential health/environmental cost. Found in 50%+ long-lasting makeup; intentional for functionality. Check labels, prioritize PFAS-free alternatives; regulations tightening but personal vigilance essential now.