GHK

GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring copper-binding tripeptide found in small amounts in human blood, saliva, and urine. It consists of the amino acids glycine, histidine, and lysine bound to a copper ion. Natural levels of GHK-Cu decline with age.

GHK-Cu is a copper peptide that helps regulate tissue repair and skin health. It doesn’t work like a hormone; instead, it acts as a signaling molecule that influences how cells behave.