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ISOSTEARYL LAURDIMONIUM CHLORIDE

CAS 220895-68-1
74

Safety score · 0–100

Fine

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

About

Isostearyl Laurdimonium Chloride is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.

Isostearyl laurdimonium chloride is a asymmetric quaternary ammonium compound combining an isostearyl (branched C18) chain with a laurdi (C12) substituent on the nitrogen. The branched isostearyl group provides improved hydrophobic conditioning compared to linear chains while reducing tendency to build up on hair. The cationic quaternary ammonium structure adsorbs strongly to negatively charged keratin surfaces, providing antistatic, lubricating, and softening effects. EU CosIng lists this substance with no specific restrictions under Regulation (EC) No 1223/2009, though the isostearyl branch imparts some mild sensitization potential comparable to other cationic surfactants.

Skin benefits

  • Provides hair antistatic and conditioning benefits
  • Improves combing and detangling performance
  • Leaves hair with softer, more lubricious feel

Known concerns

  • Mild skin sensitization potential — quaternary ammonium typical
  • Eye irritation possible at high concentrations
  • Can cause build-up on hair with repeated use of cationic products
  • Limited aquatic biodegradability — environmental consideration

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.