What Is GHK-Cu?
GHK-Cu (Copper Peptide GHK) is a naturally occurring copper complex of the tripeptide glycyl-L-histidyl-L-lysine. It is found endogenously in human plasma, saliva, and urine, and has been the subject of extensive research in skin biology and wound healing models.
Published research has investigated GHK-Cu in the context of fibroblast activity, collagen synthesis, antioxidant defense, and gene expression modulation. The compound’s ability to influence hundreds of human genes has made it a subject of broad scientific interest.