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Aspects Med., 2009, 30(1-2), 1-12
Taken orally, glutathione has inherently low bioavailability as it faces two key obstacles: the strong acidity of gastric juices and the action of a liver enzyme called gamma-glutamyltranspeptidase (GGT) which catalyzes the first stage of its breakdown (8)
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The FDA's 2019 warning letter to a Nevada compounding pharmacy illustrates the enforcement trigger: the pharmacy marketed pre-mixed glutathione IV bags as 'skin lightening treatments' and 'immune boosters' on its websitedisease and cosmetic claims that crossed into unapproved drug territory
Feng H, Wang C, He Y, Tang L, Han P, Liang J, et al
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