GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration Copper peptides like GHK Cu work by sending signals to your skin to repair, regenerate, and produce collagen. It's not about instant results, it's about improving how your skin functions over time. Dr. The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget Conversion of senescent cartilage into a pro chondrogenic microenvironment with antibody functionalized copper sulfate nanoparticles for efficient osteoarthritis therapy Journal of Nanobiotechnology Springer Nature Link