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antioxidant

S-ALLYLCYSTEINE

CAS 21593-77-1
74

Safety score · 0–100

Fine

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

S-Allylcysteine is a sulfur-containing amino acid derivative from aged garlic, providing antioxidant, brightening, and anti-inflammatory benefits in skincare formulations.

Skin benefits

  • Antioxidant compound from aged garlic
  • May help with skin brightening
  • Anti-inflammatory properties
  • Sulfur amino acid derivative

Known concerns

  • Possible characteristic odor
  • Limited large-scale topical cosmetic studies

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, so always read the physical product label and consult a healthcare professional for personal concerns.