GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has Nortech Labs GHK Cu Copper 50 GHK Cu Injectable Team Wellcore GHK Cu Copper Peptide Serum with Niacinamide, Hyaluronic Acid and Mushroom Extract 1% Copper Tripeptide 1 Anti Aging Formula, 1 oz Neurogan Health, Copper Peptide GHK CU, 120 mcg, 60 Tablets iHerb