GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B 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 Topical Ghk Cu Result TikTok Meet the Glow Peptide Your new inside out radiance booster. This powerful blend of GHK Cu, BPC 157, and TB 500 works to: Stimulate collagen & enhance skin elasticity Brighten skin, improve tone