GHK Cu Revival Clinic Subcutaneous Injection Sites and Instructions for Safe Self Administration This is my second vial, and Im in my 10th week of using the GHK Cu peptide #peptide #ghkcu #copperpeptide #update #foryou 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