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, Definitive Guide on Peptides for Skin and Hair Care Infusion Clinic ABQ GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? What is the recommended dosing for copper peptides injectable? Dimeric copper peptide incorporated hydrogel for promoting diabetic wound healing Nature Communications 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,