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Surfactant

NONOXYNOL-9

CAS 14409-72-4; 26027-38-3(generic); 26571-11-9; 37205-87-1(generic); 68412-54-4; 9016-45-9(generic) Updated
22

Safety score · 0–100

Caution

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

About

A nonionic ethoxylated nonylphenol surfactant. Strong cleanser but flagged for serious eye damage, skin irritation, mucosal toxicity and aquatic toxicity. Largely phased out of modern cosmetics.

Function

SURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • Strong nonionic surfactant
  • Effective spermicide in non-cosmetic use
  • Cleansing and emulsifying capacity

Known concerns

  • H318 causes serious eye damage
  • H315 causes skin irritation
  • H302 harmful if swallowed
  • H411 toxic to aquatic life
  • Documented mucosal damage and HIV-transmission risk in spermicidal use

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.