Alanyl Glutamine is a dipeptide of L-alanine and L-glutamine used in skincare as a skin-conditioning and humectant agent that supports hydration and barrier function. It is generally considered well tolerated and is more commonly recognized as a clinical nutrition compound.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient irritation or redness | Rare | Possible at application site, typically minor and self-limiting. |
Contact sensitization / allergic reaction | Very rare | Uncommon for amino acid derivatives; reported rarely with peptide ingredients. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.