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Film Former

POLYPHENYLSILSESQUIOXANE/TRIMETHYLSILOXYSILICATE

CAS 1991985-12-6 Updated
75

Safety score · 0–100

Fine

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

About

A silicone resin copolymer used to build flexible, water-resistant films in makeup and sunscreen. Inert on skin and well-tolerated as a class, with minimal absorption.

Function

FILM FORMING

Skin benefits

  • Forms breathable silicone film
  • Improves wear and gloss
  • Inert and non-reactive on skin
  • Water-resistant finish

Known concerns

  • Not biodegradable
  • Limited public safety data on copolymer

References

EU

EU CosIng database

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

Related film formers

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ACRYLATES/C5-8 ALKYL ACRYLATE COPOLYMER
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ACRYLATES/DIMETHICONE COPOLYMER
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ACRYLATES/DIMETHYLAMINOETHYL METHACRYLATE COPOLYMER
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ACRYLATES/VA COPOLYMER
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ADIPIC ACID/DILINOLEIC ACID/HEXYLENE GLYCOL COPOLYMER
Film Former
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ADIPIC ACID/FUMARIC ACID/TRICYCLODECANE DIMETHANOL COPOLYMER
Film Former
 75
ADIPIC ACID/ISOPHTHALIC ACID/NEOPENTYL GLYCOL/TRIMETHYLOLPROPANE COPOLYMER
Film Former
 75
AMMONIUM CASEINATE
Film Former

Check your shelf

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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.