GHK Cu Hyaluronic Acid Gel Wells Pharmacy Network The GHK Cu Peptide: Benefits, Uses, and Why it's Known as the Regenerative Copper Complex 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 Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy