Overview Nutrient supplement provides 10,000 mcg vitamin B12
[30] Cobalamin analogs prepared by this method include the naturally occurring coenzymes methylcobalamin and cobamamide, and other cobalamins that do not occur naturally, such as vinylcobalamin, carboxymethylcobalamin and cyclohexylcobalamin
People report improvements in many areas, including increased energy levels, better sleep, relief of symptoms of anxiety and depression, stronger cognitive function and memory, and improved digestion
Both are legitimate, mechanistically coherent, and encouraging as far as they go
Side effects are uncommon but may include mild discomfort or bruising at the injection site and occasional lightheadedness