Film Former
POLYURETHANE-4
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A film-forming copolymer made with PPG glycols and isophorone diisocyanate. Good wear and flexibility on skin, but residual diisocyanate monomers and persistence raise caution flags.
Function
Skin benefits
- Long-lasting flexible film
- Water resistance
- Smooth finish on skin
Known concerns
- Residual isocyanate monomer risk
- Inhalation hazard in sprays
- Environmental persistence
- Sparse safety 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 — always read the physical product label and consult a healthcare professional for personal concerns.