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 GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health Copper Peptides Serum for Face 2% GHK CU & 4% EGF Seraphime