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DIALLYLDISULPHIDE

CAS 2179-57-9
62

Safety score · 0–100

Fine

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

About

Diallyldisulphide is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

Diallyl disulphide is an organosulfur compound naturally occurring in Allium species (garlic, onion) and is classified as a fragrance allergen under EU Cosmetics Regulation 1223/2009 Annex III. It must be declared on ingredient labels when present above 0.01% in leave-on and 0.001% in rinse-off products. While not prohibited, its sensitization potential limits maximum use concentrations to trace levels.

Skin benefits

  • Antimicrobial properties from sulphur compound
  • Natural origin ingredient for botanical formulations

Known concerns

  • EU fragrance allergen declaration required
  • Skin sensitization potential at higher concentrations
  • Cross-reactivity with other disulphides
  • Oxidation can increase allergenic potential

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.