Shop › GHK-CU 100Mg Image 1 of 2 Image 2 of 2 GHK-CU 100Mg $65.00 GHK-Cu (Copper Tripeptide) 100 mg is the copper(II) complex of the tripeptide Gly-His-LysResearch Use Only - Not For Human Use Quantity: Purchase Added! GHK-Cu (Copper Tripeptide) 100 mg is the copper(II) complex of the tripeptide Gly-His-LysResearch Use Only - Not For Human Use โ20 ยฐC long-term; store desiccated and protected from light.