PDF) The Effect of the Human Plasma Molecule GHK Cu on Stem Cell Actions and Expression of Relevant Genes What Is GHK Cu? The Copper Peptide That Rejuvenates Skin Everyone's calling GHK Cu a miracle peptide But let's separate marketing from mechanism. GHK Cu isn't magic. It's a signal. A signal that: Supports tissue repair Modulates inflammation Enhances collagen + A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend What Is GHK Cu? How It Works in Research and Quality Signals Nanoengineered Self Assembling Peptides with Increased Proteolytic Stability Promote Wound Healing ACS Applied Materials & Interfaces