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Skin Conditioning

HYDROXYUNDECANOIC ACID

CAS 6336-28-3 Updated
76

Safety score · 0–100

Fine

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

About

A C11 hydroxy fatty acid used as a mild skin conditioner and antimicrobial adjunct. Generally regarded as safe in EU cosmetic use; cosmetic-specific data is limited but no significant flags.

Function

SKIN CONDITIONING

Skin benefits

  • Skin conditioning
  • Mild antimicrobial
  • Surfactant/wetting effects

Known concerns

  • Limited dossier
  • Possible mild irritation at high %

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.