Peptide of the Week Meet GHK Cu the regeneration powerhouse. Known for supporting skin repair, collagen production, and overall rejuvenation, GHK Cu helps improve texture, elasticity, and that healthy glow from within. GHK Cu is one of my personal favorites for a lot of reasons, but I can say without a doubt that it's use effectively stopped and reversed, my receiving hairline. However, there are Epigenetic mechanisms activated by GHK Cu increase skin collagen density in clinical trial EurekAlert! The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget