GHK Cu Copper Peptide Collagen Boost & Skin Regeneration Calibrate Hydration Cellular Glow Copper Peptide GHK Cu Serum for Face GHK Cu is a regenerative peptide studied for its role in collagen support, tissue repair and inflammatory balance. As natural levels decline with age, interest in its broader biological impact continues to grow 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