Injectable GHK Cu: Beginner's Guide to Copper Peptide GHK Cu Side Effects, Complications, and Risk Profile 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 GHK Cu copper peptides calm, repair, strengthen If your skin often feels: red or reactive irritated even from gentle skincare tight, dehydrated or burning tired and sensitive Ghk Cu 50. Mg Copper Injection Peptide, Powder, Packaging Type: Bottle at 3550 piece in Nagpur