Before you decide to begin using the copper peptide, GHK Cu, be aware it stings and leaves behind big, red welts that then leave a lovely bruise. In order to reap the 'glow' GHK Cu Blue Skies Health & Wellness Clinic Glow Peptide Injection: Revolutionizing Skin Rejuvenation Hubmed GHK Cu Face Serum 1200MG Lab Tested & High Potency Neurogan Health Before you decide to begin using the copper peptide, GHK Cu, be aware it stings and leaves behind big, red welts that then leave a lovely bruise. In order to reap the 'glow' 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 you're