If you're using GHK Cu and it stings a little (which is common) this one's for you In this reel I'm sharing the small tweaks that have helped me make peptide injections Why does Glycyl Histidyl Lysine Copper (GHK Cu) cause pain or discomfort? GHK CU side effects no one talks about If your GHK Cu or MOTS C injection leaves welts and burns like a hornet, it's usually not the peptide it's the technique. A few small tweaks can turn a sting into almost