B12 Shots: Vitamin B12 Injections Benefits, Uses, Risks Dr. Axe If you have a low vitamin B12 level, injections can go a long way toward improving your health and well being. But if your B12 level is normal, don't fall for claims that Vitamin B12 Deficiency: Causes, Symptoms, and Treatment Feeling tired, foggy, or low on energy? Vitamin B12 plays an important role in keeping your body functioning at its best. B12 injections may help: Individuals with low B12 levels Cyanocobalamin Injection USP 1000 mcg mL SDV Suprememed Vitamin B12 Shots Specialist Near Me in Canton, MI