Film Former
POLYURETHANE-23
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A polyurethane copolymer used widely as a flexible film-former in nail and color cosmetics. The polyurethane class is well-tolerated; high molecular weight prevents skin absorption.
Function
Skin benefits
- Forms flexible, durable films
- Long-wear in nail and color cosmetics
- High MW prevents skin penetration
- Compatible with many actives
Known concerns
- Trace residual isocyanate monomers possible — controlled at cosmetic grade
- No significant concerns at cosmetic concentrations
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.