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Emulsifier

PEG-40 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 common PEG-stearate emulsifier — workhorse of lightweight lotions. Safe on skin; purification for dioxane traces is the key quality factor.

Function

SURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • Widely used nonionic emulsifier
  • Creates lightweight creams and lotions
  • Mild and well-tolerated
  • Pharma-grade available

Known concerns

  • PEG class may carry trace 1,4-dioxane impurity
  • Less biodegradable than newer alternatives
  • Purely functional, no skin benefit

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.