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Emulsifier

BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER

CAS 158451-77-5 (generic) Updated
73

Safety score · 0–100

Fine

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

About

A silicone-PEG/PPG hybrid copolymer used as an emulsifier and smoothness enhancer in long-wear foundations. Safe at polymer MW; main caveat is PEG-residue quality.

Function

FILM FORMINGHUMECTANT

Skin benefits

  • Silicone-PEG/PPG hybrid emulsifier
  • Improves long-wear feel of foundations
  • Helps stabilize emulsions

Known concerns

  • PEG-class 1,4-dioxane residue if not purified
  • Silicone biodegradability concern
  • Limited dedicated dossier

References

EU

EU CosIng database

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

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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.