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Emulsifier

CETETH-20

CAS 9004-95-9
76

Safety score · 0–100

Fine

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

A PEG-20 ether of cetyl alcohol — a workhorse nonionic emulsifier that helps oil and water mix in creams and lotions. Well tolerated when properly purified, though it shares the 1,4-dioxane caveat of PEGs.

Skin benefits

  • Reliable nonionic emulsifier for creams and lotions
  • Stabilises oil-in-water systems at modest use levels
  • Compatible with most cosmetic actives

Known concerns

  • Ethoxylated — may carry trace 1,4-dioxane and ethylene oxide unless purified
  • Mild eye irritation at high concentrations
  • Bioaccumulation profile of PEGs debated

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.