GHK-Cu (copper peptide) is a naturally occurring tripeptide that declines with age. It stimulates collagen and glycosaminoglycan synthesis, supports superoxide dismutase activity, and modulates hundreds of genes toward a regenerative expression profile in cell culture studies.
Injectable subcutaneous protocols (1 to 2 mg daily) appear in compounding formularies alongside topical skin products. Human anti-aging RCT data are limited; mechanism is strong in vitro. Copper balance matters, excess can be pro-oxidant.
CLYR Health offers GHK-Cu injectable as a peptides preview SKU, often paired with topical estriol-GHK-Cu creams for women.