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A study indicated that supplementation with 500mg or 1000mg/day of liposomal glutathione for four weeks showed trends toward increased glutathione levels in several tissues, with significant improvements seen after just two weeks

Clin Cancer Res 11(6):2229-36, 2005

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Scandinavian Journal of Rheumatology

A variety of anticancer drugs based on these principles have been synthesized in efforts to improve their therapeutic indices and reverse tumor resistance

Dietary antioxidants such as vitamins C and E are generally required in very small amounts, working with endogenous antioxidants to maintain or re-establish redox homeostasis [53]