GHK CU Peptide for Skin Rejuvenation Wittmer Rejuvenation Clinic GHK Cu Peptide Benefits for Skin and Hair LIVV Natural Reduce GHK CU Burn: Tips & Tricks for Injecting GHK CU, Why this audio? Because injecting feels like a constant wasp sting so it takes me about 15 seconds to pin .2 mL. I dread this shot every night for that reason. Also, it leaves me bruised, so I 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