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Surfactant

C11-21 PARETH-3

CAS 246538-82-9
60

Safety score · 0–100

Fine

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

A polyethylene glycol ether of C11–C21 fatty alcohols (3 EO units), used as a nonionic surfactant and emulsifier. Cosmetic-grade is well-tolerated; trace 1,4-dioxane control is the main concern.

Function

SURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • Nonionic surfactant/emulsifier
  • Low-foam cleansing
  • Compatible with most formulations

Known concerns

  • Low-EO PEG ethers can carry residual 1,4-dioxane
  • Possible mild skin irritation
  • Should be purified for cosmetic grade

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.