Bis(Tripeptide-1) Copper Acetate is a copper-bound tripeptide derivative (a GHK-Cu type complex) used in cosmetics for its purported roles in supporting skin repair, collagen synthesis stimulation, and antioxidant activity. It is generally included as an anti-aging active in serums and creams.
| Reported effect | How often | Notes |
|---|---|---|
Mild irritation or stinging | Uncommon | Transient localized sensation, more likely with higher concentrations or sensitive skin. |
Erythema (redness) | Uncommon | Temporary flushing at application site, usually resolving on its own. |
Contact dermatitis / allergic reaction | Rare | Possible sensitization to peptide or copper component in predisposed individuals. |
Temporary skin discoloration | Very rare | Bluish or greenish tint reported anecdotally due to copper content, typically washes off. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.