Vitamin B12: How It Works, What It's Studied For & Safety
Vitamin B12 is an essential water-soluble vitamin required for red-blood-cell formation, neurologic function, and DNA synthesis. Clinicians consider it for vitamin B12 deficiency (FDA-approved). Branded products are FDA-approved under labeled indications; compounded variants are dispensed by Wells Pharmacy Network only after a licensed clinician evaluates intake, history, and labs.
Also known as: Cyanocobalamin, Methylcobalamin, Hydroxocobalamin
How does Vitamin B12 work?
Vitamin B12 is a cofactor for two human enzymes - methionine synthase and methylmalonyl-CoA mutase - central to homocysteine metabolism, myelin maintenance, and one-carbon transfer reactions.
What is Vitamin B12 studied for?
- Vitamin B12 deficiency (FDA-approved)
- Adjunct in fatigue and cognitive-support protocols when deficiency or low-normal status is documented
- Methylcobalamin form considered for selected neurological-support protocols
How is Vitamin B12 taken?
FDA-approved oral tablets, sublingual lozenges, and intramuscular/subcutaneous injections. Compounded customized strengths and combination preparations are dispensed in clinician-directed protocols.
Is Vitamin B12 FDA-approved? Is it safe?
FDA-approved as a finished drug product when prescribed under its labeled indications. Compounded variants on this site are separate from the branded product and are dispensed only when a clinician determines a compounded preparation is appropriate. Generally well-tolerated. Diagnostic workup of underlying deficiency cause is important before chronic supplementation. Compounded prescription-only preparations are dispensed by Wells Pharmacy Network. Eligibility is decided by a licensed clinician based on intake and labs, not by checkout. Compounded products on this site are not FDA-approved and are not generic equivalents of any branded medication.
In the Regen Therapy catalog
This compound does not currently appear in an active Regen Therapy protocol. Browse the full catalog for adjacent options.
What does the research say about Vitamin B12?
Decades of clinical use for documented deficiency.
Citations & further reading
Considering Vitamin B12 as part of a protocol?
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