Film Former
POLYURETHANE-41
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A generic numbered polyurethane film former used across nail, hair, and color cosmetics. Safe as the cured polymer; residual-monomer quality is the main safety lever.
Function
Skin benefits
- Flexible film former
- Good wear time on skin/nail
- Compatible across pH
Known concerns
- Residual isocyanate monomer must be controlled
- Microplastic-class concern under EU restrictions
- Limited public dossier on this specific INCI
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.