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Description
Neurobiology of Aging, 25 (3), 311-314
Stem Cells 39, 11371144
Most protocols are every other day or 2x/week during the "on" phase, not daily
So, injections are a more direct way to make sure your body gets the B12 it needs, while tablets might not work as efficiently because they have to go through your stomach and intestines first
10.1111/j.0954-6820.1968.tb02452.x
