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 Hair Growth Before and After: What to Expect Amino Innovations What is a GHK CU Injection? Benefits and Uses Prime IV GHK Cu: The Powerhouse Copper Complex for Hair and Skin BionwoRx GHK Cu Copper Peptides: Topical vs Injectable