GHK Cu Copper Peptide: The Ultimate Peptide For Longevity Why do glow peptides burn or sting after injection? If you're using GHK Cu, BPC 157, or TB 500 for skin health, hair, or tissue repair, this is a common question and usually not 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 If youre using GHK Cu and it stings a little (which is common) this ones for you , In this reel Im sharing the small tweaks that have helped me make peptide injections way more comfortable GHK CU Peptide for Skin Rejuvenation Wittmer Rejuvenation Clinic