Film Former
ISOSTEAROYL TRIMELLITIC ANHYDRIDE/TRIMETHYLOLPROPANE COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A polyester resin used as long-wear film former in color cosmetics. Inert on skin once cured; environmental persistence is the main critique.
Skin benefits
- Long-wear film-former
- Stabilizes color cosmetics
- Branched ester improves skin feel
Known concerns
- Synthetic polymer environmental persistence
- Trace residual monomer concern
- Limited published toxicology
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.