Why do glow peptides burn or sting after injection?, If youre using GHK Cu, BPC 157, or TB 500 for skin health, hair, or tissue repair, this is a common question and usually not a problem., Glow News What is a GHK CU Injection? Benefits and Uses 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 Reduce GHK CU Burn: Tips & Tricks for Injecting If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection