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OLETH-2 PHOSPHATE

CAS 39464-69-2
81

Safety score · 0–100

Good

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

About

A short-chain ethoxylated oleyl alcohol phosphate ester used as an emulsifier in cosmetic formulations, providing strong lipophilic character suitable for water-in-oil emulsions, with minor concerns about increased skin penetration due to its low EO chain.

Poly(oxy-1,2-ethanediyl), α-9-octadecenyl-ω-hydroxy-(Z)-, phosphate with an average of 2 mol EO. Functions as an anionic emulsifier with strong W/O emulsion stabilization properties. Not restricted under EU Regulation (EC) No 1223/2009; listed in CosIng without Annex II or III entries. The very short 2 mol EO chain is largely dominated by the lipophilic oleyl moiety and phosphate group, which may marginally increase skin penetration of co-formulated ingredients.

Skin benefits

  • Strong W/O emulsifier suitable for rich, occlusive textures
  • Anionic character helps stabilize emulsion interfaces

Known concerns

  • Short EO chain may increase skin penetration of co-formulants

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 — always read the physical product label and consult a healthcare professional for personal concerns.