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Emulsifier

PEG-18 STEARATE

CAS 9004-99-3
68

Safety score · 0–100

Fine

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

A PEG-stearate non-ionic emulsifier widely used in creams. Mild and well tolerated on intact skin; ethoxylated grade should be purified to limit trace 1,4-dioxane.

Function

SURFACTANT - EMULSIFYING

Skin benefits

  • Non-ionic emulsifier and emollient
  • Mild on skin and eyes
  • Versatile across creams, lotions, cleansers
  • Stabilizes oil-in-water emulsions

Known concerns

  • PEG components can carry trace 1,4-dioxane unless purified
  • Should not be used on broken skin (enhanced absorption)

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, so always read the physical product label and consult a healthcare professional for personal concerns.