Does GHK Cu Really Work? 40 Years of Research Reviewed GHK Cu Peptide Rescues Aging Cognition but Splits Molecular Pathways in the Brain News Rapamycin Longevity News Effects of Copper Tripeptide on the Growth and Expression of Growth Factors by Normal and Irradiated Fibroblasts Jeffrey D. Pollard, Susan Quan, Thomas Kang, R. James Koch, 2005 The glycyl l histidyl l lysine Cu2+ tripeptide complex attenuates lung inflammation and fibrosis in silicosis by targeting peroxiredoxin 6 ScienceDirect GHK Cu is a powerful copper peptide that supports collagen production, skin and hair health, and tissue repair. It may help reduce fine lines, improve elasticity, and promote faster healing. Want to learn The naturally occurring peptide GHK reverses age related fibrosis by modulating myofibroblast function He Aging Pathobiology and Therapeutics