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Film Former

PERFLUOROOCTYLETHYL TRISILOXANE

CAS 163921-85-5 Updated
22

Safety score · 0–100

Caution

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

About

A fluorinated silicone used for water-repellent makeup effects. Belongs to the PFAS family — environmentally persistent and increasingly restricted in cosmetics.

Function

BINDING

Skin benefits

  • Water and oil repellent
  • Used in long-wear makeup
  • Adds slip and shine

Known concerns

  • Per- and polyfluoroalkyl substance (PFAS) — environmentally persistent
  • Bioaccumulation and water-pollution concerns
  • Targeted by EU PFAS restriction proposals
  • Cosmetic role increasingly questioned

References

EU

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.