GHK-Cu 50mg· 50mg

GHK-Cu acts through multiple, interacting mechanisms that reflect both its peptide structure and its bound copper ion. The peptide stabilizes copper(II) in a redox-active but tightly chelated form, allowing controlled participation of the metal in cellular processes that depend on copper-containing enzymes, including lysyl oxidase, superoxide dismutase, and cytochrome c oxidase. Delivery of copper to lysyl oxidase has been invoked to explain observations of increased collagen and elastin cross-linking in connective-tissue research models.

At the transcriptional level, exposure of cultured human cells to GHK-Cu has been reported to modulate the expression of large gene sets associated with tissue remodeling, DNA damage response, antioxidant defense, and inflammation. Reports have described upregulation of decorin and certain matrix metalloproteinases together with parallel changes in their tissue inhibitors, generating a net remodeling phenotype favorable to wound resolution in preclinical paradigms. The complex has also been observed to enhance superoxide dismutase activity and reduce iron-driven oxidative damage in tissue homogenates, consistent with antioxidant activity. Receptor-level targets for the peptide itself remain incompletely defined, and current models emphasize the combined effects of controlled copper delivery and peptide-mediated signaling rather than engagement of a single canonical receptor.