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The presence of cysteine, with the thiol group (-SH), gives glutathione a remarkable ability to oxidize, an ability that is used in living systems to neutralize oxidizing substances such as oxygen radicals, preventing the latter from reacting to damage important biological molecules, such as enzymes or nucleic acids

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Liposomal glutathione : Here, the glutathione is encapsulated within a liposome, which helps improve absorption

(Craig 2010

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