Alkylphenol ethoxylate surfactant
NONYL NONOXYNOL-100
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Nonyl Nonoxynol-100 is a highly ethoxylated alkylphenol surfactant used as a foam booster and solubilizer. The wider nonylphenol-ethoxylate class is associated with endocrine disruption and aquatic toxicity, so its use is increasingly restricted.
Skin benefits
- Functions as a non-ionic surfactant and emulsifier
- Effective foam booster and solubilizer in cleansers
- Highly ethoxylated, giving water solubility
Known concerns
- Alkylphenol ethoxylate with documented endocrine-disruption concerns at the class level
- Nonylphenol breakdown products are persistent aquatic toxins
- Restricted or phased out in detergents in several EU regulations
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related alkylphenol ethoxylate surfactants
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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.