Copper peptide GHK-Cu is a short chain of amino acids that naturally occurs in the body, found in saliva, urine, and cell plasma. GHK-Cu was initially formulated in the 1970s, when a team led by Dr. Loren Pickart noted the regenerative properties of liver samples in young test subjects and proposed that this action was attributable to a peptide factor analogous to the synthetic tripeptide glycyl-histidyl-lysine [1].
GHK-Cu administration has since been shown to produce numerous regenerative and protective effects, including its ability to activate tissue remodeling, reverse age-related skin thinning and signs of aging, and repair skin barrier proteins [2, 3].
It is known that endogenous levels of GHK peptide naturally decline with age, from roughly 200 ng/ml at age 20 to 80 ng/ml at age 60 [3], and studies have shown that GHK-Cu can reset gene expression of human cells to a healthier state, which has led to breakthroughs in tissue regeneration and wound healing [4, 5, 6].