Genestra Brands Glutathione Precursors 87 studies. 9,000+ children. and most parents have never heard this conversation. A meta analysis of 87 studies involving over 9,000 children found consistently lower glutathione levels and higher oxidative stress in children Figure 1 from Thimerosal neurotoxicity is associated with glutathione depletion: protection with glutathione precursors. Semantic Scholar Frontiers The Precursor to Glutathione (GSH), Glutamylcysteine (GGC), Can Ameliorate Oxidative Damage and Neuroinflammation Induced by A40 Oligomers in Human Astrocytes