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Research community protocols typically restrict dosing to the morning
This is especially useful for people with B vitamin deficiencies who may feel tired or fatigued throughout the day
Discreet packaging
Using a lesser diluent, like simple sterile water, is possible for single-use applications, but it offers no protection against contamination once the vial's septum has been punctured
There are no reported risks associated with large doses of B12, since the vitamin is water soluble and excess amounts are flushed out of the system
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