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Emulsifier

PEG-4 OLEATE

CAS 9004-96-0
72

Safety score · 0–100

Fine

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

A small PEG (4 ethoxy units) joined to oleic acid. Mild emulsifier and emollient that helps oils mix with water; safe at cosmetic levels with purified grade.

Function

SURFACTANT - EMULSIFYING

Skin benefits

  • Mild non-ionic emulsifier and emollient
  • Solubilises oils into water phase
  • Skin-feel modifier in creams and lotions
  • Generally low irritation

Known concerns

  • PEG chemistry — residual ethylene oxide and 1,4-dioxane possible if unpurified
  • Use cosmetic-grade only 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, so always read the physical product label and consult a healthcare professional for personal concerns.