Acetyl Methionine is an acetylated form of the amino acid methionine used in skincare as a conditioning agent and antioxidant, supporting skin hydration and helping protect against oxidative stress. It is generally considered well tolerated in topical formulations.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation or redness | Rare | Possible in sensitive individuals or at higher concentrations. |
| Allergic contact dermatitis | Very rare | Isolated sensitization reactions reported; uncommon overall. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.