erythrocyte glutathione peroxidase activity (gPx; unit/g Hb) in Figure 1 from Comparing glutathione

doi: 10.3390/molecules30153262 230 RenJZhangSPanYJinMLiJLuoYet al

While this study demonstrates the ability to reduce these factors in a cell culture model, more research is needed to determine if L-GSH is an effective supplement for reducing the morbidity and mortality of patients with COVID-19

Glutathione is an antioxidant and protects the body from free radical damage 2

You can find these oral supplements as pills or powders in health food stores, drug stores, and some grocery stores

Only one Phase I clinical trial has been registered, and no Phase 2 or 3 trials have been completed

(no photo available) 96 tests $974 KT-64924 Mannose-1-phosphate guanyltransferase beta (GMPPB) ELISA Kit, Human For quantitative detection in human samples