6 month GHK CU check in Main takeaway: skin transformation takes time. GHK CU peptide binds to copper and activates genes involved in wound healing, collagen synthesis, and skin remodeling. On the face, this translates GHK Cu, the copper peptide, is a game changing injectable for radiant skin and so much more Here's what it can do: Boost collagen for smoother, firmer skin Anti aging 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 Liquid Peptides Advanced MP Multi Peptide Serum Medik8