The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline 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 + Not just skin deep. GHK Cu goes beyond aesthetics supporting cellular repair, energy production, and metabolic balance. From collagen stimulation to mitochondrial function, this peptide works at the root. One compound. Multiple GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes