Copper Peptides (GHK-Cu)
- Effective dose
- 0.05–3 %
- Evidence
- 3/5· Moderate
What it is
GHK-Cu is a tripeptide bound to a copper ion. It is involved in wound healing and signals fibroblasts to upregulate collagen and elastin production.
Benefits
Improvements in firmness and texture in small clinical trials. Evidence is promising but the body of research is smaller than for retinoids.
Side effects
Possible irritation. Stability in formulation matters; copper peptides can be deactivated when combined with vitamin C or strong acids in the same product.
Products containing Copper Peptides (GHK-Cu)
No products in our database contain this ingredient yet.