If youre using GHK Cu and it stings a little (which is common) this ones for you , In this reel Im sharing the small tweaks that have helped me make peptide injections way more comfortable Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms GHK Cu Scalp Solution Empower Pharmacy Getting itchy, red, burning skin after injecting GHK Cu or NAD+?, Its usually NOT an allergic reaction , Here are the 2 most common reasons:, 1. Your injection depth is offIf the peps sits between GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes Peptide Injection Site Reactions: What's Normal and Prevention Tips