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Surfactant

UNDECANOIC ACID

CAS 112-37-8
72

Safety score · 0–100

Fine

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

An odd-chain C11 fatty acid with natural antifungal activity, used in cosmetics for sebum control and gentle cleansing. Mild GHS irritant warnings; safe at typical cosmetic use levels.

Function

ANTI-SEBUMCLEANSINGSURFACTANT - EMULSIFYINGFRAGRANCESURFACTANT - CLEANSING

Skin benefits

  • Antifungal support for skin and scalp
  • Sebum regulation
  • Mild cleansing

Known concerns

  • Mild skin/eye irritation per GHS
  • Odor at higher levels

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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Same plant / compound family

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UNDECANOIC ACID DIMETHICONES
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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.