Film Former
IPDI/POLY(1,4-BUTANEDIOL)-14 CROSSPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A crosslinked urethane polymer where 14-unit poly(1,4-butanediol) chains are tied together by IPDI — used as a soft-focus bulking agent that gives a velvety skin-feel in foundations and primers. Cured polymer is inert; IPDI monomer is the standard caveat.
Function
Skin benefits
- Crosslinked polyurethane bulking agent
- Smooth velvety skin-feel in colour cosmetics
- Flexible film with good chip resistance
Known concerns
- Residual IPDI isocyanate must be controlled at manufacture
- Polymer itself is essentially inert
- Polymer too large to penetrate skin
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.