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Emulsifier

C12-15 ALKETH-9

CAS 106232-83-1 (generic)/68131-39-5 (generic)
79

Safety score · 0–100

Fine

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

A C12-15 alcohol ethoxylate with 9 EO units — a workhorse o/w emulsifier in moisturisers and lotions. Class is CIR-affirmed safe at typical use levels; the standard PEG-residue caveats apply.

Function

SURFACTANT - EMULSIFYING

Skin benefits

  • Workhorse o/w emulsifier
  • Stable across pH range
  • Improves emulsion smoothness

Known concerns

  • Trace 1,4-dioxane if not stripped
  • Mild eye irritation in concentrates

References

EU

EU CosIng database

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

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Same plant / compound family

83
C12-15 ALKETH-9 (FORMERLY C12-15 PARETH-9)
Surfactant
 70
C12-15 ALKETH-9 HYDROGENATED TALLOWATE
Emollient
 62
C12-15 ALKETH-9 PHOSPHATE
Emulsifier
 73
C12-15 ALKETH-9 PHOSPHATE (FORMERLY C12-15 PARETH-9 PHOSPHATE)
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.