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Surfactant / PEG fatty acid ester

PEG-9 COCOATE

CAS 61791-29-5
70

Safety score · 0–100

Fine

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

A polyethylene-glycol-9 ester of coconut fatty acids used as a mild nonionic surfactant and emulsifier in cleansers and emulsion-based skincare products, well tolerated at typical formulation concentrations.

Function

SURFACTANT - EMULSIFYING

Skin benefits

  • Mild nonionic PEG ester of coconut fatty acids used for cleansing and emulsifying
  • Generally well tolerated within typical use concentrations
  • Water-soluble, supporting easy rinse-off in cleansing systems
  • PEG fatty ester class has favorable CIR safety conclusions

Known concerns

  • Potential 1,4-dioxane residue from ethoxylation if not purified
  • CIR advises avoidance on damaged or compromised skin
  • PubChem CAS 61791-29-5 covers multiple PEG-cocoate variants, exact toxicology varies
  • Limited variant-specific SCCS opinion

References

EU

EU CosIng database

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

Related surfactant / peg fatty acid esters

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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.