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Film Former

SODIUM METHACRYLATE/STYRENE COPOLYMER

CAS 33970-45-5 Updated
80

Safety score · 0–100

Good

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

About

A high-molecular-weight methacrylate/styrene copolymer used as a film former and opacifier. Too large to absorb through skin; raises microplastic-class environmental questions.

Function

OPACIFYING

Skin benefits

  • Smooth films on skin
  • Opacity in cosmetic emulsions
  • Not absorbed through skin

Known concerns

  • Synthetic polymer — microplastic class scrutiny in EU
  • Environmental persistence concerns

References

EU

EU CosIng database

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

Related film formers

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ACRYLATES/BEHENETH-25 METHACRYLATE/STEARETH-30 METHACRYLATE COPOLYMER
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ACRYLATES/BEHENYL ACRYLATE/DIMETHICONE METHACRYLATE COPOLYMER
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ACRYLATES/BIS-HYDROXYPROPYL DIMETHICONE CROSSPOLYMER
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ACRYLATES/C12-22 ALKYL METHACRYLATE COPOLYMER
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ACRYLATES/LAURYL METHACRYLATE COPOLYMER
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ACRYLATES/PROPYL TRIMETHICONE METHACRYLATE COPOLYMER
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ACRYLATES/STEARETH-50 ACRYLATE COPOLYMER
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ACRYLATES/STEARYL ACRYLATE/DIMETHICONE METHACRYLATE COPOLYMER
Film Former

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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.