Lets talk peptides , Im currently using GHK Cu and if you havent heard of it yet, youre going to want to keep reading., GHK Cu (Copper Peptide) is one of the most researched peptides out We've been talking a lot about GHK Cu, but there's always more to learn. Most people think of it as a hair and skin peptide and this is true. But there is Why Dieting Feels Different on GLP 1 vs Traditional Weight Loss What is GHK Cu Collagen and Elastin Support Neurogan Health GHK Cu Glow Peptide Stack for Skin Rejuvenation Jennifer R. Berman MD