Umbrella Labs Announces Documentation And Traceability Update For GHK Cu Copper Peptide 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 Epigenetic mechanisms activated by GHK Cu increase skin collagen density in clinical trial EurekAlert! GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline