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Emulsifier

C40-60 ALKETH-3

CAS 246538-86-3 (generic)
79

Safety score · 0–100

Fine

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

An ultra-long-chain (C40-60) alcohol ethoxylate with just 3 EO units, used as a wax-bodied emulsifier in thick balms and stick formulas. Behaves more like a wax than a surfactant; low irritation but can feel occlusive.

Function

SURFACTANT - EMULSIFYING

Skin benefits

  • Stabilises rich, heavy emulsions
  • Wax-like body on skin
  • Improves long-term emulsion stability

Known concerns

  • Comedogenic potential from long alkyl chain
  • Dioxane control depends on supplier

References

EU

EU CosIng database

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

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Same plant / compound family

78
C40-60 ALKETH-3 (FORMERLY C40-60 PARETH-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.