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Surfactant

CETEARETH-25 CARBOXYLIC ACID

CAS 246159-37-5
80

Safety score · 0–100

Good

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

A C16-C18 cetearyl alcohol ether carboxylic acid with 25 EO units — among the mildest anionic surfactants available, suitable for sensitive-skin cleansers. Standard ethoxylate dioxane purity caveat.

Function

CLEANSINGSURFACTANT - CLEANSING

Skin benefits

  • High-EO ether carboxylate — very mild surfactant
  • Excellent for sensitive-skin cleansers
  • Good emulsifier for cream cleansers

Known concerns

  • Possible trace 1,4-dioxane from ethoxylation

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.