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Skin Conditioning

LYSINE CARBOXYMETHYL CYSTEINATE

CAS 79458-68-7, 49673-81-6 Updated
72

Safety score · 0–100

Fine

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

About

An amino-acid derivative pairing lysine and carboxymethylcysteine — used for mild skin and hair conditioning. Limited but benign safety profile.

Function

HAIR WAVING OR STRAIGHTENINGSKIN CONDITIONING

Skin benefits

  • Amino-acid derived conditioning agent
  • Mild on skin and hair
  • Combines lysine with carboxymethyl-cysteine

Known concerns

  • Limited published cosmetic safety data
  • Custom amino-acid derivative — variable purity
  • No major hazard signals

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.