Film Former
ISOSTEAROYL EPOXY RESIN
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An epoxy resin esterified with isostearic acid, used as a film-former in long-wear color cosmetics. The epoxy backbone (typically BADGE-based) carries sensitizer and residual-monomer concerns.
Function
Skin benefits
- Strong film-forming for color cosmetics
- Improves wear and water-resistance
- Glossy finish
Known concerns
- Epoxy resin backbone — bisphenol A diglycidyl ether (BADGE) is a known sensitizer
- Residual epoxide monomer is genotoxic
- Limited cosmetic-specific safety review
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.