Film Former
BIS-(HEA POLYCAPROLACTONE) 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.
A polyester-polyurethane hybrid that delivers tough, flexible films on nails and skin. The polycaprolactone block gives flexibility, the IPDI network gives strength — cured polymer is inert, with standard polyurethane purity caveats.
Function
Skin benefits
- Forms flexible, durable films
- Combines polycaprolactone flexibility with isocyanate strength
- Useful in nail and long-wear color systems
Known concerns
- Residual IPDI isocyanate possible if purification poor
- Acrylate-end residues are potential sensitizers
- Limited public toxicology
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related film formers
Same plant / compound family
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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.