12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK Cellular Glow Copper Peptide GHK Cu Serum for Face A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B Ghk Cu Experienxe : r Peptides GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B