GHK Cu Peptide: What It Does for Body Composition and Metabolic Health 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. The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline GHK Cu Copper Peptide in LA 3,356+ Reviews The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline