Mechanism of Action

GHK-Cu functions as a copper delivery vehicle and signaling molecule. The tripeptide binds copper(II) ions with high affinity and facilitates their transport into cells, where copper serves as a cofactor for enzymes including lysyl oxidase (essential for collagen and elastin cross-linking) and superoxide dismutase (involved in antioxidant defense).

Gene expression studies using the Broad Institute Connectivity Map have revealed that GHK modulates the expression of approximately 4,699 genes: roughly 6% of the human genome. Genes associated with tissue remodeling, including those encoding collagen, elastin, and proteoglycans, show upregulation, while genes involved in tissue destruction, chronic inflammation, and fibrotic signaling are downregulated. Research has also demonstrated stimulation of decorin production, a proteoglycan involved in TGF-beta regulation that is associated with organized collagen fibril assembly.

Research Applications

• → Gene expression analysis reveals modulation of approximately 4,699 human genes, representing roughly 6% of the genome
• → Research demonstrates stimulation of collagen types I and III, elastin, and glycosaminoglycan synthesis in fibroblast cultures
• → Studies indicate upregulation of tissue remodeling genes with simultaneous downregulation of inflammatory and fibrotic markers
• → Investigated for antioxidant gene expression modulation, including effects on superoxide dismutase and glutathione pathways
• → Preclinical wound healing studies show enhanced decorin production associated with organized collagen deposition

Analytical Validation

GHK-Cu is verified via LC-MS and HPLC analysis. Each lot is tested for identity, purity (≥99% target), and endotoxin levels. Full certificate of analysis is available upon request.