GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution Should Bodybuilders Take GHK Cu? Neurogan Health 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 What is the optimal dosing regimen of GHKCu for topical skincare and woundhealing applications? 7% GHK CU ACCELERANT Platinum Skin Care