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Emulsifier

STEARETH-21

CAS 9005-00-9 (Generic) Updated
72

Safety score · 0–100

Fine

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

About

A common ethoxylated stearyl alcohol used as a mild cream emulsifier. Considered safe; PEG part should be properly purified to keep 1,4-dioxane low.

Skin benefits

  • Smooth cream texture
  • Mild emulsifier
  • Stable formulations

Known concerns

  • Possible trace 1,4-dioxane
  • Mild irritation at high %

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.