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 GHK CU 30ml by InfiniWell Amazon.com: GHK Cu Peptide Copper Peptides Serum for Face Topical GHKCu with Hyaluronic Acid for Healthy Aging Multi Peptide Formula to Promote Collagen Support Fine Lines Firming Skin Elasticity Hydration : Beauty GHK Cu Copper Peptide Collagen Boost & Skin Regeneration Calibrate Hydration GHK CU Copper Peptide, Face Cream, 2 oz (60 ml)