Decapeptide-22 is a synthetic ten-amino-acid signal peptide used in cosmetic formulations, primarily explored for its potential to modulate melanogenesis and support skin brightening. It is typically incorporated into topical products at low concentrations as a targeted active.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient irritation or redness at application site | Uncommon | Generally mild and self-limiting; more likely with sensitive skin or higher concentrations. |
Contact allergic reaction or sensitization | Rare | Peptides are uncommon sensitizers, but individual hypersensitivity has been reported. |
Itching or stinging on application | Rare | Usually associated with compromised skin barrier or co-formulated ingredients. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.