Surfactant
SODIUM PHENYLNONANOATE SULFONATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A sulfonate surfactant for cleansing — effective but flagged as both a skin sensitizer and capable of causing serious eye damage.
Sodium Phenylnonanoate Sulfonate (CAS 91125-43-8) is an anionic surfactant used for cleansing. CosIng-listed as cleansing and cleansing surfactant. It carries H317 (skin sensitizer, 100%) and H318 (causes serious eye damage, 100%). Signal word: Danger. While surfactants commonly cause some irritation, the 100% consensus on sensitization and serious eye damage makes this more concerning than typical cleansing agents. Requires careful formulation to mitigate risks.
Function
Skin benefits
- Effective cleansing surfactant
Known concerns
- Skin sensitizer (H317) — may cause allergic contact dermatitis
- Causes serious eye damage (H318)
- 100% classification consensus on both hazards
- More hazardous than typical cosmetic surfactants
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 — always read the physical product label and consult a healthcare professional for personal concerns.