is drinking glutathione effective as a skin whitening agent: Facts, myths, evidence and controversies JOYN Supplement for Alcohol Flush

Also, a substantial decrease in glutathione levels precedes the mitochondrial dysfunction and neuronal death found in Parkinsons disease, suggesting GSH depletion may initiate the subsequent impairment.It also suggests that increasing GSH levels may have potential benefit toward preventing diseases associated with mitochondrial dysfunction

However, the net effect depends on overall biological context, regulatory mechanisms, and timing

Curr Issues Mol Biol 45:33153332 Wu JQ, Kosten TR, Zhang XY (2013) Free radicals, antioxidant defense systems, and schizophrenia

It has many functions, including working as an antioxidant to protect cells from oxidative damage