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, GHK CU vial dosage question : r PeptidePathways Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Glow Peptides India: BPC 157, TB 500 & Copper Peptides Guide