Injectable GHK Cu: Beginner's Guide to Copper Peptide STOP the GHK Cu itch!, The secret to a painless GHK Cu injection? The 15 Minute Rule. , Injecting cold, acidic peptides causes mechanical and chemical stress on your cells. , To lower the sting:, 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 Why is the injection site painful after administering GHK Cu (Glycyl L Histidyl L Lysine Copper) 2mg mixed with normal saline? GHK Cu Copper Peptide Injections Your Skin's Ultimate Rejuvenation Boost Ready to restore youthful, glowing, firmer looking skin? GHK Cu Copper Peptide injections are one of the most powerful anti aging regenerative treatments