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First, determine the concentration after reconstitution: divide the vial size (in mcg) by the volume of bacteriostatic water added (in mL)
Sourcing a tested material does not change the evidence picture described above trial data still do not transfer to any specific product, and nothing here is a therapeutic recommendation
Results typically last from one to two weeks, though this can vary based on individual factors like stress levels, diet, and baseline B12 stores
Store 2-8 C (short-term) or 20 C (long-term) per validated stability/institutional practice
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