Compound library / Supplements / Vitamins

Vitamin B12 (Methylcobalamin)

Essential vitamin for nerve function and red blood cell production; popular as an injectable "energy" shot, though benefits beyond correcting a deficiency are unproven.

CategorySupplements / Vitamins
Typical routeIntramuscular
Half-life~6 days (varies by tissue)
Common dose range1,000-5,000 mcg, weekly to monthly (injectable) or 500-1,000 mcg/day (oral/sublingual)
Typical cycle lengthOngoing if deficient

BioHack Track models Vitamin B12 (Methylcobalamin) at a half-life of 144 hours, so every dose you log is decayed against that curve and the app shows what is still circulating — not just what you typed.

Reconstitution

Injectable forms are pre-mixed; oral/sublingual need no prep.

Storage

Refrigerate injectable vials; protect from light.

Cautions

Very low toxicity risk since excess is excreted, but energy/mood benefits in people who aren't deficient are not well supported by evidence.

Track Vitamin B12 (Methylcobalamin) in BioHack Track. Half-life, dose range and route come pre-filled from this library — log a dose and the app counts your vial down, models what is in your system, and puts it on the same chart as your labs and body composition.

Others in Supplements / Vitamins

Look up the research

These open a search of each database for Vitamin B12 (Methylcobalamin) — they are not citations, and nothing here is evidence for any particular dose. The same links are in the app.

Work it out