Vitamin B12 Supplements
Vitamin B12 is an essential nutrient. It supports your nervous system and methylation processes. You also need it for healthy red blood cells, DNA synthesis, and homocysteine conversion.†
Vitamin B12 supplements come in several forms. Bioavailability matters so that you get the benefits. Whether you have MTHFR or are a vegan looking to prevent vitamin B12 deficiency, you want the best vitamin B12 supplements.
Vitamin B12 is an essential nutrient. It supports your nervous system and methylation processes. You also need it for healthy red blood cells, DNA synthesis, and homocysteine conversion.†
Vitamin B12 supplements come in several forms. Bioavailability matters so that you get the benefits. Whether you have MTHFR or are a vegan looking to prevent vitamin B12 deficiency, you want the best vitamin B12 supplements.
That’s why Seeking Health B12 comes in several bioavailable formulations that are gluten-free and non-GMO. You can get B12 from foods (mostly animal products), but vegans and vegetarians need to supplement. Even if you have high dietary intake, you may still benefit from supporting B12 levels with a supplement.†
Active B12 1000 and Active B12 5000 contain methylated and coenzyme forms of B12 (methylcobalamin and adenosylcobalamin), making these the most potent, active B12 supplements we offer.
If you want a non-methyl supplement, Hydrox-Adeno B12, Hydroxo-B12, and Adeno B12 all provide high doses without the active form of vitamin B12. Adenosylcobalamin and hydroxocobalamin still readily convert to active forms in the body, so you are still getting the bioavailable nutrients that you need. You can choose capsules or lozenges.†
If you prefer B12 paired with folate, try Active B12 with L-5-MTHF or Optimal Multivitamin.
Use this B12 Comparison Chart to see side-by-side differences in B12 supplements and choose the one that is best for you.
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Best SellerActive B12 with L-5-MTHF - 60 Lozenges
4.9Rated 4.9 out of 5496 Reviews Based on 496 reviewsFrom $21.95Active B12 with L-5-MTHF Lozenges by Seeking Health provide 1,360 mcg DFE (800 mcg) of pure non-racemic L-methylfolate in an easy-to deliver lozeng...
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Best SellerBonus RewardsB Complex Plus - 100 Capsules
4.9Rated 4.9 out of 5249 Reviews Based on 249 reviewsFrom $27.95B Complex Plus by Seeking Health provides eight B vitamins with active forms of folate, vitamin B12, riboflavin, and B6. This complex also contains...
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Hydroxo B12 - 60 Lozenges
4.8Rated 4.8 out of 5148 Reviews Based on 148 reviewsFrom $21.95Hydroxo B12 by Seeking Health provides 2,000 mcg of hydroxocobalamin in an easy-to-deliver lozenge form. Not only does hydroxocobalamin easily conv...
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Buy 1, Get 2 FREE*B Minus - 100 Capsules
4.8Rated 4.8 out of 5170 Reviews Based on 170 reviewsFrom $27.95B Minus by Seeking Health is a pure vitamin B complex formula that provides thiamin, riboflavin, niacin, vitamin B6, pantothenic acid, and biotin. ...
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Hydroxo B12 with Folinic Acid - 60 Lozenges
4.8Rated 4.8 out of 5106 Reviews Based on 106 reviewsFrom $21.95Hydroxo B12 with Folinic Acid by Seeking Health provides 1,000 mcg of hydroxocobalamin along with 1,360 mcg DFE (800 mcg) of folate as folinic acid...
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Buy 1, Get 2 FREE*Hydrox-Adeno B12 - 60 Lozenges
4.9Rated 4.9 out of 592 Reviews Based on 92 reviewsFrom $21.95Hydrox-Adeno B12 by Seeking Health provides 2,000 mcg of vitamin B12 as hydroxocobalamin and adenosylcobalamin in each convenient lozenge. Adenosyl...
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Adeno B12 - 60 Lozenges
4.8Rated 4.8 out of 583 Reviews Based on 83 reviewsFrom $19.95Adeno B12 by Seeking Health provide 3,000 mcg of adenosylcobalamin, the mitochondrial form of vitamin B12, in an easy-to-deliver lozenge. Adenosylc...
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Active B12 5000 - 60 Lozenges
4.9Rated 4.9 out of 593 Reviews Based on 93 reviewsFrom $25.95Active B12 5000 by Seeking Health provides two active “coenzyme” forms of vitamin B12, methylcobalamin and adenosylcobalamin, in a high-potency, ea...
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Active B12 1000 - 60 Lozenges
4.9Rated 4.9 out of 565 Reviews Based on 65 reviewsFrom $10.95Active B12 1000 by Seeking Health provides two active “coenzyme” forms of vitamin B12, methylcobalamin and adenosylcobalamin, in a lower dose of 1,...
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New NameB Complex MF - 100 Capsules
4.6Rated 4.6 out of 546 Reviews Based on 46 reviewsFrom $27.95Neurotransmitter balance, energy production, hormone balance, and even your metabolism are all dependent upon B vitamins for normal function. As a ...
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Keeps me hydrated so I can avoid breaking my fast until lunch time! I love the fizziness of the seltzer flavor.

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Best probiotic for women
I love this probiotic. I often get flora imbalances since having my third child. I have been using this for 4 months a few times per week, and have had no issues since.

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Love optimal prenatal. I tried several different brands before trying these and they are by far the best!

Claire C.

Awesome
Keeps me hydrated so I can avoid breaking my fast until lunch time! I love the fizziness of the seltzer flavor.

Cheryl

Best probiotic for women
I love this probiotic. I often get flora imbalances since having my third child. I have been using this for 4 months a few times per week, and have had no issues since.