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Cysteine is needed to produce glutathione, one of the bodys most important antioxidants
Its important to note that while some people seek B12 supplementation for wellness, the benefits in non-deficient individuals are not strongly supported by evidence
Analytically, a co-formulated vial also demands more of its certificate of analysis, which must resolve and assay two species of very different mass separately rather than reporting one aggregate figure
Friedman HS et al
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