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Emulsifier

C20-40 ALKETH-40

CAS 97953-22-5 (generic)/251553-55-6 (generic)/246538-83-0 (generic)
60

Safety score · 0–100

Fine

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

A long-chain ethoxylated alcohol used as an emulsifier and emollient. Generally well tolerated; main concern is 1,4-dioxane residue control in the ethoxylation step.

Function

SURFACTANT - CLEANSINGSURFACTANT - SOLUBILIZING

Skin benefits

  • Long-chain alketh emulsifier and emollient
  • Stabilizes oil-in-water emulsions
  • Imparts smooth skin feel

Known concerns

  • Ethoxylated — trace 1,4-dioxane risk depending on grade
  • No specific CIR review for this homolog
  • PEG-class allergy is uncommon but possible

References

EU

EU CosIng database

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

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Same plant / compound family

86
C20-40 ALKETH-40 (FORMERLY C20-40 PARETH-40)
Surfactant

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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.