GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu 50mg Should Bodybuilders Take GHK Cu? Neurogan Health GHK Cu Peptide Progress: Week 3 Results dAnTeS tAKiNg StErOiDs , GHK Cu is a copper peptide commonly discussed for skin health, recovery, and collagen support. If youre gonna look into peptides, learn first, rush never. Too many Loose skin isnt about age alone., Its about collagen signaling., GHK Cu (copper peptide) is known for supporting pathways involved in:, Collagen and elastin production, Skin remodeling and