Acetyl Tyrosine is an acetylated form of the amino acid tyrosine used in skincare as a conditioning agent and, in some formulations, marketed as a precursor that may support melanin synthesis (notably in tanning-related products). It is more stable and soluble than free tyrosine.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation or redness | Rare | Generally well tolerated; transient irritation possible in sensitive individuals. |
| Contact allergic reaction | Very rare | Isolated potential for sensitization, as with most cosmetic ingredients. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.