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In fertility and early embryonic development studies, male and female rats were administered twice weekly subcutaneous doses of 0.5, 1.5, or 3 mg/kg (0.3-, 1-, and 2-fold and 0.3-, 0.9-, and 2-fold, respectively, the MRHD of 15 mg once weekly based on AUC)

However, other studies haven't seen a link between low levels of B12 and cognitive problems or an improvement in these symptoms after getting extra doses of B12

Think of these as the 'scaffolding' that gives tissue its plumpness and resilience

Animal studies have shown it counteracts dopamine-depleting neurotoxins and modulates dopamine receptor activity

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