Film Former
POLYESTER-23
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A synthetic film-forming polyester used in nail and lip products for shine and durability. Cured polymer is inert; supplier purity around phthalic anhydride residues is the safety lever.
Function
Skin benefits
- Adds shine and durability in nail and lip
- Resists water and abrasion
- Cured polymer is inert
Known concerns
- Built from phthalic anhydride — supplier residue control matters
- Microplastic-class polymer pressure
- Not biodegradable
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.