
GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring copper complex found in human plasma, saliva, and urine. It has been characterized as a biological signal associated with tissue regeneration and wound healing across multiple published studies. Research has documented that serum concentrations of GHK-Cu decline measurably with age in study populations. Published research has examined this copper tripeptide's capacity to influence over 4,000 genes toward regenerative expression states in cell culture models, including pathways associated with collagen synthesis, glycosaminoglycan production, and angiogenesis. The wound healing research profile of GHK-Cu is among the most extensively documented of any naturally occurring peptide. Studies have examined its effects across dermal repair models, hair follicle research, and antioxidant signaling pathways. The copper chelation component (Cu2+) is understood to be essential for biological activity in these research models. For researchers studying wound healing mechanisms, dermal biology, or gene expression regulation, GHK-Cu represents one of the most well-characterized naturally occurring peptide-metal complexes in published literature. For research use only.
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