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Film Former

BIS-METHOXY PEG-13 PEG-438/PPG-110 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 large PEG-PPG-urethane copolymer used as a thickener and film former. Once polymerized it is inert; trace residual isocyanate or dioxane is the watch-out. Limited public safety data.

Skin benefits

  • Film-forming and sensory enhancer
  • Rheology modifier for thickening
  • Boosts product wear/feel

Known concerns

  • SMDI is saturated MDI-derived; isocyanate residue risk if poorly cured
  • PEG component carries potential 1,4-dioxane contamination at trace levels
  • Large mystery polymer with no SCCS opinion

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.