injections of vitamin b12 are given in the treatment of Who Offers Vitamin B12 for

Research suggests it may stimulate dermal papilla cells to regrow hair [1]

As a cofactor, cobalamins are essential for two cellular reactions: the mitochondrial methylmalonyl-CoA mutase conversion of methylmalonic acid (MMA) to succinate, which links lipid and carbohydrate metabolism, and the activation of methionine synthase, which is the rate-limiting step in the synthesis of methionine from homocysteine and 5-methyltetrahydrofolate

Response to treatment with rosiglitazone in familial partial lipodystrophy due to a mutation in the LMNA gene

By week 2 to 3, side effects from the initiation dose should be minimal

No adverse effects of B12 toxicity have ever been recorded from taking excessive amounts of B12