GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Wellness peptide craze: why people are injecting drugs 'not for human consumption' Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms This peptide reverses aging, And its been hiding in plain sight for decades., GHK Cu (Copper Peptide) is one of the most researched anti aging ingredients out there., Heres what it does:, Innovation meets biology GHK Cu is a naturally occurring copper peptide studied for its role in skin health, collagen support, and tissue repairmaking it a powerful tool in next generation peptide science. Precision.