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NONYL NONOXYNOL-24 PHOSPHATE

CAS 39464-64-7
63

Safety score · 0–100

Fine

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

About

Nonyl Nonoxynol-24 Phosphate is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

NONYL NONOXYNOL-24 PHOSPHATE has a higher ethoxylation degree (24 EO units) compared to the -11 variant, which partially mitigates concerns about nonyl phenol metabolite penetration. The phosphate ester functionality provides good emulsification properties for cosmetic use. The EU does not specifically list this substance in Annexes II or III, but nonyl phenyl ethoxylates remain under environmental and endocrine-disruption scrutiny. The higher EO count brings this into a category analogous to fragrance allergens and Annex III restricted substances.

Skin benefits

  • emulsifying
  • surfactant

Known concerns

  • endocrine disruption potential (nonyl phenol metabolite)
  • environmental toxicity
  • ethylene oxide contamination (potential)

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.