IV Glutathione is NOT FDA approved for skin lightening Glutathione deficiency alters the vitamin D metabolizing enzymes CYP27B1 and CYP24A1 in human renal proximal tubule epithelial cells and kidney of HFD fed mice ScienceDirect Harness the Power of Glutathione to Safeguard Kidney Function from Age Related Decline Genetic mapping of renal glutathione suggests a novel regulatory locus on the murine X chromosome and overlap with hepatic glutathione regulation ScienceDirect