taking glutathione daily Doctor's Best + Milk Thistle , 60 Veggie Caps L-GLUTATHIONE 100 mg

The level of reactive species in the cellular system may be reduced by antioxidants either by restricting the expression or activities of free radical-producing enzymes such as xanthine oxidase (XO) and NAD(P)H oxidase, or by enhancing the expression and activities of antioxidant enzymes such as glutathione peroxidase (GPx), catalase (CAT), and superoxide dismutase (SOD) (Shahidi and Zhong, 2015

Many research studies done by US Government and Pub Med have documented the functions Glutathione provides to the body

The plasma supernatant was aliquoted, snap-frozen in liquid nitrogen and stored at 80 C before analysis

Nitric Oxide: Ocular Blood Flow, Glaucoma, Anddiabetic Retinopathy