How Long Does GHK Cu Take to Work? GHK Cu Timeline GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Ghk cu and skin peptides (topical) Skin regeneration and wrinkle reduction Longevity Protocols GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer 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