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BEHENAMIDOPROPYLTRIMONIUM METHOSULFATE

50

Safety score · 0–100

Moderate

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

About

A behenyl-chain quaternary ammonium conditioner designed to deposit long-lasting conditioning films on hair and skin, especially effective on negatively charged substrates.

Behenamidopropyltrimonium methosulfate carries a C22 behenyl fatty chain, giving it very high substantivity for hair and skin due to chain-length-driven van der Waals interactions. The methosulfate counterion makes it more water-soluble than chloride salts. EU CosIng shows no specific entries in Annexes II or III. The high lipophilicity raises mild concern for skin build-up with prolonged use, placing it in the mid-lower range.

Skin benefits

  • High substantivity cationic conditioning for damaged skin and hair
  • Provides smooth, soft after-feel
  • Effective on negatively charged substrates such as keratin

Known concerns

  • Potential for build-up on skin and hair with repeated use
  • Mild eye irritation possible
  • Limited independent safety data available

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.