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ACETYL TRYPTOPHAN

CAS 1218-34-4
63

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 with mild skin and eye irritation hazards but widely used in cosmetics for antioxidant and anti-aging benefits.

Acetyl Tryptophan is an acetylated derivative of the essential amino acid tryptophan, used as a skin conditioning agent and antioxidant with a PubChem safety score of 68. It carries GHS statements H302, H315, H319, and H335 indicating irritation potential, but the concentrations used in cosmetic formulations are typically well below levels that would produce these effects. It is not restricted under EU cosmetics regulations.

Skin benefits

  • Antioxidant — complements skin's natural defence
  • Anti-aging and skin conditioning
  • May support skin barrier function

Known concerns

  • H302 — harmful if swallowed (at high doses)
  • H315/H319/H335 — mild irritation 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.