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Surfactant

C9-11 ALKETH-3 (FORMERLY C9-11 PARETH-3)

CAS 68439-46-3 (generic)
78

Safety score · 0–100

Fine

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

A short-chain C9-11 fatty alcohol with just 3 EO units — low-HLB co-emulsifier and oil solubilizer. CIR-cleared family but yellow because low-EO short-chain grades are slightly defatting on extended skin contact.

Function

SURFACTANT - EMULSIFYING

Skin benefits

  • Lipophilic co-emulsifier
  • Good for solubilizing oily ingredients
  • Improves spreadability

Known concerns

  • Low EO leans defatting
  • Trace 1,4-dioxane requires supplier control
  • Best as co-emulsifier not primary

References

EU

EU CosIng database

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

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Same plant / compound family

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C9-11 ALKETH-3
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.