I'm a longevity doctor 3 peptides to help live longer GHK Cu (50 MG) Sigma Compounds GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B 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, Our FDA approved peptides are officially restocked and ready to elevate your results! Call or message us to get startedyour wellness routine just leveled up. GHK Cu: The Elegant Copper Peptide for Skin and Scalp Renewal Renew Vitality