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Glutathione synthesis is ATP-consuming and depends on the availability of the amino acids cysteine, glutamine and glycine and requires two subsequent reactions, in which -glutamylcysteine synthetase (-ECS or GSH1, EC 6.3.2.2) first catalyzes the formation of -glutamylcysteine (-EC) from cysteine and glutamine and glutathione synthetase (GSHS or GSHS2, EC 6.3.2.3), then catalyzes the formation of glutathione from -EC and glycine

These four vitamins inherently possess antioxidant properties, allowing them to function as antioxidants (159, 160)

Glutathione liquids are more expensive than powders or capsules, but they also tend to be of higher quality

Engage in moderate exercise Regular moderate exercise plays a significant role in maintaining and increasing healthy glutathione levels