Palmitoyl Tripeptide-37 is a lipidated synthetic peptide used in cosmetic formulations to support collagen synthesis and improve the appearance of fine lines and skin firmness. It functions as a matrix-stimulating signal peptide intended to mimic fragments of collagen.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient redness or irritation | Uncommon | Usually localized and self-resolving, often related to formulation or other actives. |
| Contact sensitization or allergic reaction | Rare | Possible in individuals sensitive to peptides or accompanying excipients. |
| Stinging or itching on application | Rare | Typically mild and short-lived, more likely on compromised skin. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.