Film Former
BIS-HYDROXYETHYL ACRYLATE POLY(1,4-BUTANEDIOL)-9/IPDI COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A polyurethane film-former built from poly(1,4-butanediol)-9 and isophorone diisocyanate with HEA end-caps. Commonly used in long-wear skin and nail products; safe as cured polymer with standard residual monomer caveats.
Function
Skin benefits
- Forms flexible, durable barrier films on skin and nails
- Long-wear cosmetic film performance
- Compatible with both water- and solvent-based systems
- High-MW polymer with limited monomer migration
Known concerns
- Residual isophorone diisocyanate possible
- Residual hydroxyethyl acrylate possible (skin sensitizer)
- Microplastic environmental persistence
- Strict EU residual monomer compliance required
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.