What it does, if you are deficient, is fix the energy and metabolic drag that low B12 causes
Some injections that are smaller in volume can be given in the arm or deltoid muscle, however, large-volume injections like our metabolism booster must be given in a larger muscle such as the dorsogluteal site located on the outer aspect of your buttocks near your hip
The amount varies depending on age, dietary intake, and medical conditions
B12 injections can help improve mood and reduce symptoms of depression
Not intended to diagnose, treat, cure, or prevent any disease.
Most of what we know comes from preclinical and experimental research, rather than human trials