Film Former
POLYURETHANE-56
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A high-molecular-weight polyurethane polymer used as a film former for long-wear makeup and SPF. The cured polymer itself is inert; safety hinges on residual monomer levels.
Function
Skin benefits
- Long-wear film former
- Improves wear and water resistance in mascara/foundation
- Polymer matrix is non-bioavailable
Known concerns
- Cured polymer is inert; residual monomers (isocyanate) are the theoretical concern
- Limited cosmetic-specific safety dossiers
- Generic polyurethane number — composition varies
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.