Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference Injectable Peptides for Anti Aging? A Dermatologist Explains GHK Cu A lot of people asked how I use GHK Cu (copper peptide) with a pen device, so here's a quick tutorial showing exactly how I do it. In this video I show how GHK CU COPPER PEPTIDE 5MG 10MG 50MG 100MG VIAL UMBRELLA Labs GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B