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ARACHIDYL/BEHENYL BETAINATE MESYLATE

72

Safety score · 0–100

Fine

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

About

An amphoteric surfactant derived from arachidyl and behenyl alcohols — works as a mild cleansing and conditioning agent that produces a rich, stable lather in body and hair care formulations.

Arachidyl/Behenyl Betainate Mesylate is a mixed-chain amphoteric surfactant based on arachidyl (C20) and behenyl (C22) fatty alcohols. The betainate mesylate structure (a quaternary ammonium with carboxylate counterion) gives it amphoteric character: it is positively charged at low pH and negatively charged at high pH, making it compatible across a wide pH range. The very long fatty alkyl chains (C20-C22) give it an exceptionally mild surfactant profile with excellent dermatological compatibility. The mesylate counterion is unusual and the ingredient is not widely documented in standard surfactant safety literature, but the overall structure suggests low concern.

Skin benefits

  • Very mild amphoteric surfactant — suitable for sensitive skin
  • Long-chain alkyls provide rich, stable lather
  • Skin-conditioning — does not strip skin as harshly as SLS

Known concerns

  • Limited published safety data specifically for this compound
  • The mesylate counterion requires monitoring for sulfate-based sensitization in atopic individuals

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.