The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips Peptide Sciences GHK Cu 50mg Copper Egypt Vitamins GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? GHK Cu G Lab Peptides Uncover the Power of GHK Cu peptide FIT9