Everything DoseRank tracks on the vitamin b12 (cobalamin) shelf — Hydroxocobalamin. The category itself is never ranked: 473 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing vitamin b12 (cobalamin) supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 45 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Vitamin B12 statusBiochemical sufficiency of cobalamin.403 rankedStrong
Mean corpuscular volumeAverage red blood cell size.226 rankedStrong
Neuropathy symptomsPain, numbness, or dysfunction due to peripheral nerve problems.405 rankedStrong
HomocysteineAmino acid marker linked with vascular and methylation status.405 rankedStrong
Anemia statusPresence of clinically meaningful low red cell mass or hemoglobin.252 rankedStrong
Congenital anomalyStructural or functional birth defect.134 rankedStrong
Folate statusBiochemical sufficiency of folate.134 rankedStrong
Cognitive functionOverall thinking ability including memory, attention, and processing.326 rankedModerate-strong
FatiguePersistent tiredness, low stamina, or lack of energy.435 rankedModerate-strong
Red blood cell countNumber of circulating red blood cells.16 rankedStrong
Reaction timeSpeed of physical or cognitive response to a stimulus.22 rankedStrong
Perceived exertionSubjective difficulty of physical effort.21 rankedStrong
StrokeCerebrovascular event causing neurologic injury.106 rankedStrong
Vitamin B6 statusBiochemical sufficiency of pyridoxine-related compounds.79 rankedStrong
Lipoprotein(a)Inherited lipid-related cardiovascular risk marker.29 rankedStrongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best vitamin b12 (cobalamin) supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 473 products against that goal's trials.