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, Buy GHK Cu Powder Peptides (100MG) 99% Pure RUO Peptides GHK Cu 50mg Skin & Tissue Repair Research Peptide WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents GHK Cu Peptide Dosing PeptidesPower Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare