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Rapid Oxidation: Free glutathione quickly oxidizes into glutathione disulfide (GSSG) upon exposure to air or light, losing its efficacy and causing discoloration (browning) of the product
Its ~5day halflife allows convenient onceweekly subcutaneous dosing [1]
Latest scientific advances in understanding high B12 Research published since 2023 points in two directions at once: reassurance about supplements, and a clearer sense of when an elevation deserves attention
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