Sawa, T
Acute toxicity studies in animals, if extrapolated to humans, implicate a single dose of 10-15 grams necessary to produce significant liver toxicity, although several human case reports have shown toxicity at doses less than 4 grams per day (likely due to having one or more risk factors for sensitivity to toxicity) (Amar 2007)
Yang Y, Zhang H, Zuo J, Gong X, Yi F, Zhu W, et al
Some individuals may also combine glutathione with vitamin C for enhanced antioxidant effects, based on professional advice
GREEN TEA (AND EGCG) In addition to containing small amounts of caffeine, green tea is rich in catechins with multiple benefits, promoting fat loss through catecholamine activation and AMPK stimulation
Glutathione for Skin Whitening : What to Expect from skin treatment