How to Measure and Inject GHK Cu (Copper Peptide for Skin and Tissue Repair) YouTube I've been getting a lot of questions about GHK Cu, so here's a quick breakdown. GHK Cu is a copper peptide that naturally occurs in the body and plays a role in skin repair GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping LVLUP Health GHK Cu 60 Capules JING