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Thickener

PEG-150/STEARYL ALCOHOL/SMDI COPOLYMER

Updated
72

Safety score · 0–100

Fine

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

About

A PEG-based polyurethane thickener used in shampoos and cleansers for texture and stability. Inert as a finished polymer — main caveat is making sure 1,4-dioxane impurities stay low.

Function

FILM FORMINGVISCOSITY CONTROLLING

Skin benefits

  • Effective rheology modifier and thickener
  • Improves texture in surfactant systems (shampoos, cleansers)
  • Inert as a finished polymer

Known concerns

  • PEG class can carry trace 1,4-dioxane if not purified
  • SMDI monomer hazardous in unreacted form
  • Limited cosmetic-specific dossier

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.