The Peptide Craze Ground Truths Pharmacogenomics of insulin like growth factor I generation during GH treatment in children with GH deficiency or Turner syndrome The Pharmacogenomics Journal 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 GHK Cu is everywhere right now. Hair growth, skin repair, inject this and look 25 again. You can inject GHK for years, but if the body receiving the signal isn't set up to Frontiers Growth hormone insulin like growth factor I axis in health and disease states: an update on the role of intra portal insulin