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Film Former

PEG-400/1,4-BUTANEDIOL/SMDI COPOLYMER

CAS 155801-96-0,1342797-89-0
68

Safety score · 0–100

Fine

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

A PEG-400/butanediol/SMDI copolymer used as an absorbent in skincare and makeup. The cured polymer is inert; supplier control over residual diisocyanate and PEG dioxane keeps it firmly in yellow.

Function

ABSORBENT

Skin benefits

  • Absorbent in skincare and color cosmetics
  • Contributes to long-wear and oil control
  • Compatible with both aqueous and emulsion bases

Known concerns

  • PEG-400 component requires controlled 1,4-dioxane levels
  • Built on SMDI; supplier must control residual diisocyanate
  • Limited cosmetic-specific clinical data

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, so always read the physical product label and consult a healthcare professional for personal concerns.