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Research parameters include absorption kinetics, systemic distribution, first-pass metabolic avoidance, and potential olfactory or trigeminal transport pathways to the central nervous system
A vitamin B12 deficiency can cause extreme fatigue, among other symptoms, and leave individuals feeling weak and foggy
But the honest reality is that injectable peptides are the most effective delivery method for most applications, and the discomfort is minimal once youve done it a few times
We scoured the medical database looking for reactions to any form of B12, and all we could find were ten cases (which all happened in reaction to either cyano or hydroxy B12, not the other forms)
