Shop 99% Pure GHK Cu Copper Peptides AminoVault GHK CU 100 mg Peptide Cart NIOD Copper Amino Isolate Serum 3 1:1 (Various Sizes) Copper peptide our favorite active ingredient IDOLAB Introduction GHK Cu is a copper peptide complex formed from the tripeptide glycyl L histidyl L lysine bound to copper. This compound has garnered significant attention in both laboratory and formulation research due to its critical role