GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? GHK Cu (Copper Peptide) Provider Supervised Therapy IV Glow Bar Fraley Whats the difference between GHK Cu (copper peptide) as a topical cream vs an injection? In this video I break down: What GHK Cu is and why its used in anti aging skincare What results GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? Your skin holds a protein called copper peptide and it naturally declines with age. GHK Cu, the star of our RenewMe program, works by replenishing that signal so your body remembers how