2026's Top 5 Vitamin B12 Supplements

We picked Luma Nutrition's Vitamin B12 supplement for our top spot because it checks every box on our list of criteria.

First and foremost, Luma Nutrition uses methylcobalamin—the active, bioavailable form of B12 that your body can use immediately. Each serving delivers a full 1000mcg, which is well above the minimum threshold we recommend for an effective B12 supplement.

Also, Luma Nutrition has a few different special offers available that give customers a big discount. This makes it one of the best values on our list when you factor in both quality and price.

Finally, they offer a fair, 90-day, risk-free, money-back guarantee. Most companies won't do this, which shows how much they stand behind their products. Overall, Luma Nutrition is our top pick.

*Scores and results are based on our ranking system and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

Number two on our list is Jarrow Formulas Methyl B-12.

Jarrow Formulas is a well-respected supplement brand that has been around for decades. They do use methylcobalamin, which is the correct form of B12—so that's a positive. They also have a loyal customer base and generally positive reviews.

However, the price is higher compared to other options on this list, and they do not offer the same kind of money-back guarantee that our top pick does. This makes it harder to try risk-free.

Overall, Jarrow Formulas Methyl B-12 is a solid option from a reputable brand, but it falls short when compared to our number one pick in terms of value and customer protection.

*Scores and results are based on our ranking system and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

Number three on our list is Nature Made Vitamin B12.

Nature Made is one of the most recognizable supplement brands in the country, and you can find their products in just about every pharmacy and grocery store. They have a long track record and are USP verified, which is a plus for quality assurance.

However, the biggest issue with this product is that it uses cyanocobalamin—the synthetic, less bioavailable form of B12. Your body has to convert cyanocobalamin into methylcobalamin before it can use it, which means you're not getting the most efficient form of this vitamin.

Overall, Nature Made is a recognizable name, but the use of an inferior B12 form and lack of a strong money-back guarantee puts it behind the top picks on our list.

*Scores and results are based on our ranking system and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

Number four on our list is NOW Foods Methyl B-12.

NOW Foods is a budget-friendly brand that does use methylcobalamin, which is a positive. They offer a range of dosage options, but the lower-dose versions may not provide enough B12 to make a meaningful difference, especially for those with a deficiency.

While the price is attractive, there are some mixed reviews from customers regarding the effectiveness of this product. Additionally, like most Amazon-sold brands, there is no strong money-back guarantee to fall back on.

In summary, NOW Foods Methyl B-12 is a decent budget option, but it ranks lower because of inconsistent reviews and lack of customer protection compared to higher-ranked products on our list.

*Scores and results are based on our ranking system and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.

Number five on our list is Natrol Vitamin B12.

Natrol markets their B12 as a "fast dissolve" tablet, but that's more of a gimmick than a real benefit. The product uses cyanocobalamin—the cheaper, synthetic form of B12 that requires your body to convert it before use. It also contains artificial flavors and unnecessary additives that we'd prefer not to see in a health supplement.

The low price might be tempting, but as we always say—this is a matter of your health. Cutting corners on ingredient quality to save a few dollars is rarely worth it.

In conclusion, we cannot recommend Natrol Vitamin B12 when there are significantly better options available on this list.

*Scores and results are based on our ranking system and do not necessarily reflect typical results from the use of these products. Please visit product websites for more information.