Glutathione salts of O,O diorganyl dithiophosphoric acids: Synthesis and study as redox modulating and antiproliferative compounds ScienceDirect Glutathione system enhancement for cardiac protection: pharmacological options against oxidative stress and ferroptosis Cell Death & Disease Oral administration of glutamylcysteine increases intracellular glutathione levels above homeostasis in a randomised human trial pilot study ScienceDirect Oral supplementation with liposomal glutathione elevates body stores of glutathione and markers of immune function European Journal of Clinical Nutrition