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 Experiencing itching & burning from your GHK CU peptide injections? Try these to hacks:, 1. Use a longer syringe to penetrate deeper into the fat cells. , 2. Dilute the copper. Here I show you how to GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B What Is GHK Cu? How It Works in Research and Quality Signals