What is GHK-Cu?

GHK-Cu is the copper complex of glycyl-L-histidyl-L-lysine, a three-amino-acid peptide first isolated from human plasma. The peptide binds a copper(II) ion through its histidine ring and amine groups, which holds the metal in a controlled form. Our vial holds 100 mg of lyophilized powder, with a listed molecular weight of 401.91 g/mol and a formula of C14H22CuN6O4.

Researchers study it mostly in cell culture and animal wound models, where much of the work asks how a copper-carrying peptide changes collagen and matrix turnover. It also appears in blends such as GLOW 70mg. Every lot is Made in China and lot-tested, and it’s sold for laboratory research only. See the full specs for our GHK Cu peptide.