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Hair Conditioning

DIPALMITOYL CYSTINE

CAS 17627-10-0 Updated
75

Safety score · 0–100

Fine

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

About

Dipalmitoyl cystine, the sulphur amino acid cystine linked to two palmitic acid chains. Used in hair conditioning. Limited public data but no known toxicity flags.

Skin benefits

  • Reinforces hair protein bonds
  • Lipid-soluble cystine carrier
  • Mild on skin in rinse-off use

Known concerns

  • Thin published safety literature
  • Sourcing concerns around palm derivatives

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.