Film Former
POLYURETHANE-90
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A high-molecular-weight polyurethane film former used in nail and skin coatings. Cured polymer is inert and low-risk; safety hinges on tight control of any residual diisocyanate monomers from manufacture.
Function
Skin benefits
- Forms flexible, durable film on nails or skin
- Resists chipping and water
- Polymer is non-bioavailable and inert when fully cured
Known concerns
- Residual diisocyanate monomers are potent respiratory sensitizers
- Limited public CIR review of this specific number-grade
- Industrial-handling risk during manufacture, less so for end users
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.