About GHK-Cu (Copper Peptide)
GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring tripeptide found in human plasma, saliva, and urine. It has a high affinity for copper (II) ions, forming a stable complex that has been the subject of extensive research across multiple biological domains. Its plasma concentration declines significantly with age, from approximately 200 ng/mL at age 20 to around 80 ng/mL by age 60.
Research suggests GHK-Cu activates multiple biological pathways including collagen and elastin synthesis, tissue remodeling via matrix metalloproteinase regulation, angiogenesis, and anti-inflammatory activity through downregulation of TNF-alpha and other inflammatory mediators. It has been shown in vitro to activate over 4,000 genes, with the majority of effects oriented toward tissue repair and regeneration. Dissolved GHK-Cu solution has a characteristic blue color due to the copper complex — this is expected and indicates compound integrity.
Research Applications
GHK-Cu is used in research investigating collagen and elastin synthesis, wound healing mechanisms, skin remodeling, anti-inflammatory pathways, angiogenesis, and gene expression modulation. The compound is of particular interest in aging research given its natural decline with age and its broad gene-activating properties.