Film Former
BIS-(2-HYDROXYPROPYL ACRYLATE) POLY(1,4-BUTANEDIOL)-14/HDI COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A urethane-acrylate copolymer based on HDI (hexamethylene diisocyanate) and poly(1,4-butanediol)-14 with HPA end-caps. Holds cosmetic ingredients together; HDI residuals are a documented respiratory sensitizer.
Function
Skin benefits
- Effective cosmetic binding agent
- Improves product adhesion
- Flexible urethane-acrylate film
- High-MW polymer with limited monomer migration
Known concerns
- Residual HDI is a documented respiratory sensitizer
- Residual hydroxypropyl acrylate is a skin sensitizer
- HDI carries more concern than IPDI counterparts
- Microplastic environmental persistence
- EU restrictions on free HDI levels
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, so always read the physical product label and consult a healthcare professional for personal concerns.