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Surfactant

BUTOXYNOL-19 CARBOXYLIC ACID

CAS 104909-82-2
67

Safety score · 0–100

Fine

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

A high-ethoxylate butoxynol carboxylic acid used in cleansing systems. Limited individual data, and butoxynol naming overlaps with alkylphenol-class chemistry that EU regulators are progressively phasing down.

Function

CLEANSINGSURFACTANT - EMULSIFYINGSURFACTANT - CLEANSING

Skin benefits

  • High-EO ether carboxylate — mild profile
  • Good water solubility for liquid cleansers
  • Useful as a viscosity modifier in surfactant systems

Known concerns

  • Butoxynol family historically related to alkylphenol ethoxylates
  • Limited individual cosmetic safety data
  • Possible trace 1,4-dioxane from ethoxylation

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, so always read the physical product label and consult a healthcare professional for personal concerns.