Many people are being told to inject peptides like BPC 157, GHK Cu, or TB500 right over the area of pain, thinking it will deliver the peptide directly into the injured tissue. Thats simply not true. Hard Lump Under Injection Site: Treatment, Causes, and More MyEczemaTeam 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 GHK Cu (Copper Peptide) Therapy Revitaliv Jupiter FL Ghk Cu Painful TikTok