Film Former
POLYURETHANE-40
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A polyurethane film-forming polymer (Polyurethane-40) used in sunscreens, mascaras and styling products. Once cured, the polymer is essentially inert on skin; modern grades keep residual isocyanate monomers very low.
Function
Skin benefits
- Flexible film
- Long-wear
- Water resistance
Known concerns
- Residual isocyanate control needed
- Microplastic discussion
- Limited public cosmetic data
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, so always read the physical product label and consult a healthcare professional for personal concerns.