Film Former
BIS-HEMA POLY(1,4-BUTANEDIOL)-14/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-style film-forming polymer built on polybutanediol and IPDI. Used to give nail and cosmetic films better wear. Generally safe in cured form; residual monomer is the watch-point.
Skin benefits
- Polymeric film-forming network on skin and hair
- Improves wear and water resistance of cosmetics
- High molecular weight limits skin penetration
Known concerns
- IPDI-derived polymers can carry residual isophorone diisocyanate monomer
- Limited public toxicology on this exact polymer
- Possible sensitisation if free monomer is present
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.