Vitamin B12: which form?

Vitamin B12 is sold in several forms, each named on its own Supplement Facts panel. Each form we price is compared on its own, per 1,000 mcg of B12, within labeled strength bands.

Of the 23 products across every type: 7 named at the exact package by a certifier, 16 in no database we searched.

Methylcobalamin16 products

200 to 5,000 mcg per serving

Vitamin B12 whose Supplement Facts panel names methylcobalamin. Every package is priced per 1,000 mcg of B12, compared only within its labeled strength band.

Cyanocobalamin7 products

200 to 5,000 mcg per serving

Vitamin B12 whose Supplement Facts panel names cyanocobalamin. Priced per 1,000 mcg of B12 from the panel, compared only against labels of the same strength.

Questions about vitamin b12

Methylcobalamin vs cyanocobalamin: what is the price difference?

What each form of vitamin B12 costs per 1,000 mcg at the same labeled strength, with what the Supplement Facts panels say. Absorption is not compared.

Which vitamin B12 brands are third-party tested?

Every vitamin B12 we price, grouped by whether a certifier names the exact bottle sold, another size, or nothing we found. Absence is not a verdict.

What is the cheapest vitamin B12?

Every vitamin B12 we track, both forms, priced per 1,000 mcg from its own label and ranked within each labeled strength, with which bottles a certifier names.

Is Nature Made vitamin B12 USP Verified?

Nature Made vitamin B12, every strength and count we price, checked against USP’s Verified directory and the USP Verified Mark on each label.

Is Thorne vitamin B12 NSF certified?

Thorne Vitamin B12 checked against NSF Certified for Sport bottle by bottle: which counts the listing names, with the listing ID.

Cheapest means the cheapest we track, not the cheapest that exists. A price per 1,000 mcg is a statement about price, not a suggestion of how much to take. How these numbers are made: How we compare.

What this rests on: prices we last recorded at the retailer named on each product page, which go stale, and each page says when it was checked; the products we track, not every product sold, and Amazon and Walmart are not among the stores; listings and labels read at the source, each linked from the page. Found an error? Tell us. The full method: How we compare.