The peptide activates extracellular signal-regulated kinase 1/2 (ERK1/2) phosphorylation in a dose-dependent manner, leading to nuclear translocation and activation of transcription factors including c-Fos, c-Jun, and early growth response-1 (Egr-1) that drive expression of genes involved in cell growth, migration, and angiogenesis
Due to its broad regenerative activity and stable profile, GHK-Cu is suitable for extended research where skin health, repair, and anti-aging processes are key areas of focus
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Composed of glycine, histidine, and lysine combined with a copper ion, this peptide is naturally found in human plasma, saliva, and urine, though its levels decline with age
"The Effect of Topical Tripeptide-Copper Complex on Healing of Ischemic Open Wounds." Vet Surg
(Source 2) The papaya is a large, pear-shaped fruit with deep orange flesh originating in Central America