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Film Former

BIS-METHOXY PEG-13 PEG-502/PPG-57/SMDI COPOLYMER

CAS - Updated
60

Safety score · 0–100

Fine

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

About

A close cousin of the PEG-438 version — a large PEG-PPG-urethane copolymer used as a thickener and film former. Cured polymer is inert. Watch-out is trace isocyanate or 1,4-dioxane carryover.

Skin benefits

  • Film-forming and sensory enhancer
  • Rheology modifier for thickening
  • Improves product wear and slip

Known concerns

  • SMDI-derived; residual isocyanate risk if poorly polymerized
  • PEG fraction can carry trace 1,4-dioxane
  • Mystery polymer; no SCCS opinion

References

EU

EU CosIng database

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

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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.