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Does it work on its own
Brain fog and trouble concentrating might have you blaming stress, but your B12 levels could be the real culprit
Oral formulations may require 3-4 weeks for significant benefits, though some patients report gastrointestinal improvements within days
Intended strictly for laboratory research use
The other drawback is vial longevity
Do I need to cycle it, and why 8 12 weeks?+ The 8 12 weeks on, 4 weeks off convention is not derived from any study
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