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Surfactant

UNDECETH-11

55

Safety score · 0–100

Moderate

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

A polyethylene glycol ether of undecanol used as a surfactant. Like other ethoxylated surfactants, it can carry trace 1,4-dioxane unless purified to cosmetic grade.

Function

SKIN CONDITIONING - EMOLLIENTSURFACTANT - EMULSIFYINGSKIN CONDITIONINGSURFACTANT - CLEANSING

Skin benefits

  • Non-ionic surfactant
  • Emulsifier in cleansers/lotions

Known concerns

  • Possible 1,4-dioxane trace impurity
  • Possible mild irritation in leave-on products
  • Limited substance-specific data

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.