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PEG fatty acid ester surfactant

PEG-120 STEARATE

CAS 9004-99-3
72

Safety score · 0–100

Fine

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

PEG-120 stearate is a high molecular weight emulsifier and thickener used in cleansers and creams. It is mild and effective, with safety dependent on tight control of ethoxylation impurities.

Skin benefits

  • Effective non-ionic surfactant and viscosity modifier
  • Acts as a gentle thickener in surfactant systems
  • Improves foam quality in cleansers
  • Compatible with a wide pH range

Known concerns

  • PEG materials may carry trace ethylene oxide or 1,4-dioxane
  • Requires reputable supplier with purity control
  • Limited biodegradability profile
  • Not preferred for broken or compromised 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.