B12 Methylcobalamin vs Hydroxocobalamin The difference between in clinic B12 injections vs over the counter. There are many forms of vitamin B12, the form used at La Bella is Methylcobalamin. The Cyanocobalamin vs. Methylcobalamin: Unraveling the Differences and Benefits Brandon Medical Center Cyanocobalamin (Vitamin B12) Injection Methylcobalamin B12 Injection in Beverly Hills, Arcadia and Los Angeles County California Infusion Centers Cyanocobalamin vs Hydroxocobalamin (Vitamin B12 forms) Key Clinical Differences Hydroxocobalamin is preferred in: Pernicious anemia Severe vitamin B12 deficiency Neurological symptoms (subacute combined degeneration, neuropathy) Cyanocobalamin is Methylcobalamin vs Cyanocobalamin: What's the Difference?