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Film Former

ISOPHTHALIC ACID/PENTAERYTHRITOL CROSSPOLYMER BENZOATE/ISOSTEARATE

CAS 909394-29-2 Updated
72

Safety score · 0–100

Fine

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

About

A crosslinked polyester built from isophthalic acid and pentaerythritol, end-capped with benzoate and isostearate groups. Used as a heavy film former; chemistry suggests low skin reactivity but data is sparse.

Function

FILM FORMINGVISCOSITY CONTROLLING

Skin benefits

  • Film former
  • Viscosity control
  • Long-wear

Known concerns

  • Limited public toxicology
  • Microplastic policy debate
  • Residual monomer dependence

References

EU

EU CosIng database

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

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Check your shelf

Find ISOPHTHALIC ACID/PENTAERYTHRITOL CROSSPOLYMER BENZOATE/ISOSTEARATE in your products.

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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.