Glutathione (reduced) is found in all cells of the body and plays a role in cell growth as well as antioxidant activity. This molecule is also integral to facilitating liver detoxification. To ensure absorption, Vital Nutrients sources Setria® Glutathione, a patented ingredient studied in clinical trials that confirmed increased levels of glutathione in red blood cells, plasma, lymphocytes, and buccal tissues after doses and durations of oral Setria®.