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Surfactant

NONOXYNOL-4

CAS 68412-54-4/ 9016-45-9 (generic)/ 26027-38-3 (generic)/ 37205-87-1 (generic)/ 7311-27-5/ 27176-97-2
35

Safety score · 0–100

Caution

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

A short-chain nonylphenol ethoxylate surfactant used as a cleanser or emulsifier. It is heavily restricted in the EU because nonylphenols are toxic to aquatic life and act as endocrine disruptors.

Skin benefits

  • Effective nonionic surfactant and emulsifier in rinse-off products
  • Helps disperse oils and improve cleansing performance

Known concerns

  • Nonylphenol ethoxylates are restricted in the EU as endocrine disruptors
  • Known aquatic toxicity and persistence with bioaccumulation potential
  • Can contain residual nonylphenol, a recognized environmental hazard
  • Restricted under EU REACH Annex XVII for many uses
  • Skin and eye irritation potential at use concentrations

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.