GHK Cu Face Serum 1200MG Lab Tested & High Potency Neurogan Health 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 a growing body of peer DIY GHK Cu Serum at Home Anti Aging Hack That Actually Works! Want smoother, healthier looking skin without breaking the bank? In this video, I show you how to create your own GHK Cu Copper Peptides Serum for Face 2% GHK CU & 4% EGF Seraphime Copper Peptide (GHK Cu) 2% Recovery Serum