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Emulsifier

PEG-4 LAURATE

CAS 9004-81-3
78

Safety score · 0–100

Fine

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

A monoester of polyethylene glycol-4 with lauric acid used as a mild emulsifier and solubiliser in skincare. Generally well tolerated at use levels; subject to the usual PEG trace-impurity caveat.

Skin benefits

  • Mild emulsifier and solubilising surfactant
  • Helps disperse fragrance and oils in water-based products
  • Gentle on skin at typical use levels

Known concerns

  • Ethoxylated — possible trace 1,4-dioxane unless properly purified
  • Mild eye irritation at higher concentrations
  • PEGs persist in the environment

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related emulsifiers

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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.