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STEARAMIDOETHYL DIETHANOLAMINE HCL

CAS -
55

Safety score · 0–100

Moderate

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

About

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

Stearamidoethyl diethanolamine HCl is a cationic quaternary compound used primarily as an antistatic agent and hair conditioner in rinse-off and leave-on cosmetic formulations. As with other ethanolamine derivatives, it falls under the EU III/411 restriction framework concerning secondary amine nitrosation. The HCl salt form mitigates some concerns relative to free DEA, but purity specifications and maximum nitrosamine limits still apply under Regulation (EC) No 1223/2009.

Skin benefits

  • Antistatic properties for hair care
  • Improves combability and sensory feel
  • Film-forming conditioning effect

Known concerns

  • DEA-derived secondary amine — nitrosamine formation potential (III/411)
  • Possible trace residual DEA after synthesis
  • Mild skin and eye irritation potential in free form

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.