GHK Cu LVLUP Health GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu LVLUP Health Dr Tahera explains that the topical version of GHK Cu and how it supports skin repair and rejuvenation. This is the cream based approach. Injectables? We'll cover that next. Because understanding your options matters. Dr Tahera explains that the topical version of GHK Cu and how it supports skin repair and rejuvenation. This is the cream based approach. Injectables? We'll cover that next. Because understanding your options matters. GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B