Film Former
BIS-HEMA POLY(1,4-BUTANEDIOL)-14 NEOPENTYL GLYCOL/IPDI COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A UV-curable polyurethane copolymer used in long-wear nail and skin formulas. The cured polymer is inert; safety hinges on tight control of residual IPDI and methacrylate monomers.
Function
Skin benefits
- Cured-film durability
- Low penetration once cured
Known concerns
- Residual isocyanate/methacrylate controlled by QC
- Methacrylate sensitization potential
- Limited public 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.