l Citrulline restores nitric oxide level and cellular uptake at the brain capillary endothelial cell line (TR BBB cells) with glutamate cytotoxicity ScienceDirect Eight weeks of resistance training in conjunction with glutathione and L Citrulline supplementation increases lean mass and has no adverse effects on blood clinical safety markers in resistance trained males Journal of the Glutathione and Citrulline Supplement Market Combined Citrulline and Glutathione Supplementation Improves Endothelial Function and Blood Pressure Reactivity in Postmenopausal Women Full article: Combined L citrulline and glutathione supplementation increases the concentration of markers indicative of nitric oxide synthesis