What Is the Best Methylcobalamin B12 Supplement?
The best methylcobalamin B12 is Pure Encapsulations Methylcobalamin: 1,000 mcg in a capsule, for $10.25 a month. WeightWorld gives the same dose for $1.13 a month. For a lozenge, pick NOW. We checked 17.
By Erin Rose Updated November 2026 How we score
1. Our pick, the plain capsule ChatGPT names
- B12
- 1,000 mcgAs methylcobalamin
- Cost
- $10.25 a monthOne capsule a day
- Bottle
- $20.5060 capsules on Amazon
- Label
- Plant fiber, capsuleShown below
Why we pick it ChatGPT’s answers to this question name it and call it hypoallergenic. Its label lists one other ingredient, plant fiber (cellulose), in a vegetarian capsule, and it carries a certified gluten-free seal.
Which one should you buy?
2. WeightWorld Vitamin B12: best for the lowest cost
The same 1,000 mcg of methylcobalamin in a small tablet you swallow, one a day. A bottle of 450 lasts more than a year, the lowest cost a month of the 17 we checked.
WeightWorld Vitamin B12
$1.13 a month · $16.99 for 450 tablets
3. NOW Methyl B-12: best lozenge
1,000 mcg in a lozenge you let melt in your mouth, sweetened with xylitol, stevia and monk fruit. It is the lowest cost of the lozenges and chewables here, and a brand ChatGPT names.
NOW Methyl B-12 Lozenges
$2.15 a month · $7.16 for 100 lozenges
4. Country Life Methyl B12: best certified vegan lozenge
1,000 mcg in a cherry lozenge sweetened with xylitol and stevia. Its listing says it is certified vegan and certified gluten-free. ChatGPT names Country Life often for lozenges.
Country Life Methyl B12 Lozenges
$7.70 a month · $15.39 for 60 lozenges
Choose Pure Encapsulations for the Certified Gluten-Free seal on its label and for being named in ChatGPT’s answers; it costs $9.12 more a month than WeightWorld, which has the same 1,000 mcg. Choose Doctor’s Best for 1,500 mcg in an equally plain capsule at $4.00 a month, WeightWorld for the lowest cost, and NOW or Country Life if you want it to melt in your mouth.
One of 17 is on a testing list, and nine melt or chew in your mouth
We checked 17 methylcobalamin B12 supplements sold on Amazon. One is on a third-party testing list: Thorne, on NSF Certified for Sport and NSF/ANSI 173. Nine are lozenges, melts or chewables and eight are swallowed. Twelve give 1,000 mcg a serving; the other five give 1,500 to 5,000 mcg.
Here are 13 in three groups. Our pick leads; each group then runs from lowest cost a month.
We also read the two ChatGPT names first, Thorne Vitamin B12 and Jarrow Methyl B-12 lemon chewables, plus NatureWise methylcobalamin capsules and Garden of Life Vitamin Code Raw B-12.
| Supplement | B12 a serving | Cost | Buy |
|---|---|---|---|
| Capsules and tablets you swallow | |||
 Pure Encapsulations MethylcobalaminOur pick60 capsules | 1,000 mcg; plant fiber and a vegetarian capsule | $10.25 a month | See on Amazon |
| WeightWorld Vitamin B12450 mini tabletsBest for the lowest cost a month | 1,000 mcg; cellulose, croscarmellose, silica, stearic acid and magnesium stearate | $1.13 a month | See on Amazon |
 Nutricost Vitamin B12240 capsulesBest for 2,000 mcg at a low cost | 2,000 mcg; dicalcium phosphate and rice flour | $1.87 a month | See on Amazon |
 Doctor’s Best Fully Active B1260 capsulesBest for 1,500 mcg in a plain capsule | 1,500 mcg; cellulose and a vegetarian capsule | $4.00 a month | See on Amazon |
 Sports Research Methyl B12120 liquid capsulesBest for a liquid-filled capsule | 2,000 mcg in coconut MCT oil | $6.24 a month | See on Amazon |
| Lozenges and melts | |||
| NOW Methyl B-12 Lozenges100 lozengesBest for the lowest cost lozenge | 1,000 mcg; sweetened with xylitol, stevia and monk fruit | $2.15 a month | See on Amazon |
 Horbaach B12 Fast Dissolve120 tabletsBest for 5,000 mcg under the tongue | 5,000 mcg; mannitol, dextrose and stevia | $3.00 a month | See on Amazon |
 Life Extension Methylcobalamin Lozenges60 lozengesBest for a vanilla lozenge | 1,000 mcg; xylitol, sorbitol, vanilla | $3.75 a month | See on Amazon |
 EZ Melts B1290 meltsBest for a melt sweetened with monk fruit | 2,500 mcg; mannitol and monk fruit, cherry | $6.66 a month | See on Amazon |
| Country Life Methyl B12 Lozenges60 lozengesBest for a certified vegan lozenge | 1,000 mcg; xylitol and stevia, cherry | $7.70 a month | See on Amazon |
 Solgar Sublingual Methylcobalamin Nuggets30 nuggetsBest for a small 30-day bottle | 1,000 mcg; mannitol, dissolves under the tongue | $10.05 a month | See on Amazon |
| Chewables | |||
 Natural Factors Methylcobalamin Chewables180 tabletsBest for the lowest cost chewable | 1,000 mcg; made with lactose | $2.91 a month | See on Amazon |
 Bluebonnet EarthSweet Methylcobalamin60 chewablesBest for a fruit-sweetened chewable | 1,000 mcg; fruit juice sweetened, raspberry | $5.58 a month | See on Amazon |
Adults need 2.4 mcg a day; labels often give 1,000 mcg
NIH puts the daily need for adults at 2.4 mcg. Many supplements give 500 or 1,000 mcg, far more, and the body absorbs only a small share of doses that large. Check the Supplement Facts label for the amount in each serving.
Methylcobalamin is one of four forms sold
NIH lists cyanocobalamin, methylcobalamin, adenosylcobalamin and hydroxocobalamin, and says research has not shown that any form of supplemental B12 is better than the others. Choose methylcobalamin by how you like to take it, the dose and the cost. More in methylcobalamin vs cyanocobalamin.
Who should check their B12
NIH says people over 50 should get most of their B12 from supplements or fortified foods, vegans and vegetarians may not get enough from food, and metformin may lower how much B12 you absorb.
The two labels, side by side
The two labels
Questions people ask
Is Pure Encapsulations methylcobalamin vegan?
Yes. Its label photo shows a vegan mark, and the capsule is made of cellulose and water.
How do I take it?
The label says 1 capsule, 1 to 3 times a day, with meals. One capsule gives 1,000 mcg; the cost a month on this page is for one a day.
Is 1,000 mcg of B12 too much?
NIH calls doses like 500 or 1,000 mcg safe, and says the body absorbs only a small share of them. More in is 1,000 mcg of B12 too much.
Should I take a lozenge or a capsule?
A lozenge suits you if you would rather not swallow a pill. NIH lists B12 that melts under the tongue among the forms and says research has not shown any form works better.
How we picked
On November 9, 2026 we read the labels of 17 methylcobalamin B12 supplements on Amazon and searched five testing lists for each: NSF/ANSI 173, NSF Certified for Sport, Informed Choice, Informed Sport and USP Verified. Prices are Amazon’s, read November 9, 2026.
Sources
- Amazon listings and label photos of the 13 supplements above, prices read November 9, 2026; label panels from the NIH Dietary Supplement Label Database.
- Testing lists, read November 9, 2026: NSF/ANSI 173 list; NSF Certified for Sport; Informed Choice; Informed Sport; USP Verified.
- NIH Office of Dietary Supplements, Vitamin B12 fact sheet for consumers, read November 9, 2026.