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Surfactant

ISOSTEARETH-11 CARBOXYLIC ACID

80

Safety score · 0–100

Good

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

A branched (iso) C18 alcohol with 11 ethoxylates terminating in a carboxylic acid — gives an unusually mild surfactant with skin-friendly feel. Generic dioxane purity is the only meaningful caveat.

Function

SURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • Mild branched-chain surfactant
  • Excellent skin tolerance
  • Good for cream cleansers and emulsion stabilization

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.