Palmitoyl tripeptide-1 (also known as palmitoyl oligopeptide or pal-GHK) is a lipidated synthetic peptide used in anti-aging formulations to signal fibroblasts and support collagen and extracellular matrix production. It is commonly paired with other peptides for improved skin firmness and reduction in fine lines.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient skin irritation or redness | Rare | Generally well tolerated; occasional irritation may relate to other formulation components. |
Contact dermatitis / allergic sensitization | Very rare | Isolated reports; peptides are considered low-allergenicity. |
Stinging or itching on application | Rare | Usually mild and self-limiting. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.