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Emulsifier

PEG-66 TRIHYDROXYSTEARIN

Updated
66

Safety score · 0–100

Fine

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

About

A heavily PEGylated castor-oil-derived ester used as a strong emulsifier and emollient. Generally well tolerated, but the high ethoxylation level brings the usual residual 1,4-dioxane concern requiring supplier purity controls.

Function

SURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • Strong emulsifying capacity
  • Solubilises actives in water
  • Provides emolliency

Known concerns

  • Residual ethylene oxide / 1,4-dioxane impurities possible
  • Higher PEG numbers carry more impurity risk
  • Less mild than non-ethoxylated emulsifiers

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.