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Emulsifier

PEG-8 STEARATE

CAS 9004-99-3 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 ester of stearic acid that emulsifies oil and water in lotions. Generally safe at cosmetic levels; quality depends on PEG purification to limit dioxane traces.

Function

SURFACTANT - EMULSIFYINGHUMECTANTSURFACTANT - CLEANSING

Skin benefits

  • Stable lotion emulsions
  • Good skin feel

Known concerns

  • 1,4-dioxane trace in lower-grade PEG
  • Caution on broken skin

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.