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Vials should be stored and handled in accordance with institutional laboratory standards to preserve stability, purity, and analytical integrity
The frequency depends on your needs
Those with pre-existing conditions such as irritable bowel syndrome (IBS), functional dyspepsia, or gastritis may be more prone to experiencing stomach upset from supplements generally, including B12 preparations
*Dont be alarmed if you happen to smell an odor and youre used to B12 that has almost no odor
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