Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips Parents & teen athletes: not everything trending on social media is safe., Copper peptides like GHK Cu are being promoted for skin health, but these products are unregulated and not FDA approved, And we're back with our GHK Cu peptide injection pen. Here's how to use it, and where. More coming soon ;) #ghkcu #ghkcucopperpeptide #peptides GHK Cu (50mg) Alpha BioMed GHK Cu Peptide: What It Does for Body Composition and Metabolic Health