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Film Former

POLYESTER-23

70

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

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

FILM FORMING

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

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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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.