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Emulsifier

STEARETH-100

CAS 9005-00-9 (Generic) Updated
70

Safety score · 0–100

Fine

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

About

Steareth-100 is a PEGylated stearyl alcohol used as a non-ionic emulsifier. Generally low-irritation; concern centers on residual 1,4-dioxane in unrefined grades.

Function

GEL FORMINGSURFACTANT - CLEANSING

Skin benefits

  • Effective non-ionic emulsifier and solubilizer
  • Mild compared to anionic surfactants
  • High HLB stabilizes oil-in-water creams

Known concerns

  • Trace 1,4-dioxane possible if not purified
  • PEG impurities depend on grade

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.