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Surfactant

NONOXYNOL-5 CARBOXYLIC ACID

CAS 28212-44-4 (generic)/ 53610-02-9 Updated
50

Safety score · 0–100

Moderate

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

About

A short-chain nonylphenol-ethoxylate surfactant. Same regulatory and environmental concerns as its longer-chain cousin and somewhat more irritating to skin — being phased out of personal care.

Function

SURFACTANT - CLEANSING

Skin benefits

  • Cleansing action
  • Solubilises lipophilic ingredients

Known concerns

  • Endocrine disruptor concern (NPE class)
  • Stronger irritation potential than NX-10
  • Aquatic toxicity and persistence
  • EU REACH restrictions on the parent class

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.