Surfactant
SODIUM NONOXYNOL-25 SULFATE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A heavily ethoxylated (25 EO) sulfated nonylphenol surfactant. Milder on skin than shorter homologs, but the nonylphenol backbone breaks down to a REACH-restricted aquatic endocrine disruptor — being phased out in EU formulations.
Function
Skin benefits
- Mild rinse-off cleansing
- Lower mucosal irritation than short-chain homologs
Known concerns
- Nonylphenol breakdown — REACH Annex XVII
- Aquatic endocrine disruption
- Possible 1,4-dioxane traces
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related 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.