Film Former
POLYURETHANE-39
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A polyurethane film-forming polymer used in long-wear makeup and sunscreens. Sits on skin to give a flexible film; large molecule, not absorbed. Environmental persistence is the main caveat.
Skin benefits
- Flexible film former for long-wear products
- Improves wear and water resistance
- Smooth skin feel
- Inert at cosmetic levels
Known concerns
- Synthetic polymer not biodegradable
- Limited public toxicology data on this exact polymer
- Not for use on broken skin
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related film formers
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.