ZQ II Anti Aging GHK CU Serum 3 x 3 ml 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK Don't use copper peptides with these 2 skincare ingredients Mara Monterrubio Week 3 of GHK Cu and the copper uglies are definitely doing their thing Trusting the process, staying patient, and letting it work its magic If you know, you know it gets worse before it gets