Amino acid derivative
ACETYL TRYPTOPHAN
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Acetyl tryptophan is an acetylated form of the amino acid tryptophan used as a skin-conditioning and antioxidant agent. It suits barrier-friendly formulas and is well tolerated at the levels used in skincare.
Skin benefits
- Acetylated amino acid with antioxidant potential
- May support skin barrier through tryptophan-derived metabolites
- Used to enhance peptide and protein formulations
- Generally well tolerated at cosmetic levels
Known concerns
- Limited large-scale topical safety data
- Possible mild irritation in very acidic formulations
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related amino acid derivatives
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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.