For healthy individuals who desire a super-fast pick me up, Methylcobalamin injections are slightly more fast-acting than their synthetic counterpart, although both are highly effective
Clinical research suggested doses in the range of 1-10mcg per kilogram of body weight showed efficacy, though most protocols standardized around 4-6mcg/kg for practical application
If you get digestive symptoms after taking B12, often there is a bacterial overgrowth or possibly fungal overgrowth creating the digestive symptoms
Paired with structured nutrition and training, it can help accelerate progress and break through plateaus
This is the reason why you cant overdose on B12, and its also the reason why you want to inject on a daily basis
A deficiency may cause hair loss, but extra B12 only helps if levels are low