Top 10 Best mcg in 2026

Last Updated - 6/8/2026

🏆Best Choice

Horbäach

Horbäach B12 Vitamin 5000 mcg | 120 Fast Dissolve Tablets | Sublingual Methylcobalamin | Vegetarian, Non-GMO & Gluten Free Supplement

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•SUBLINGUAL B-12: Enjoy the benefits of this Essential Vitamin in delicious Natural Berry Flavor!
•POTENT FORMULA: Fast dissolve tablets feature 5,000 mcg of Vitamin B-12 as Methylcobalamin
•EXPERTLY CRAFTED: Our vegetarian formula is backed by our commitment to purity and potency
•HORBAACH MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
•NATURALLY FREE OF: Gluten, Yeast, Milk, Lactose, Soy, Artificial Flavor, Preservatives, & Non-GMO

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$9.99

$11.75

-15%

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Nature's Bounty

Nature’s Bounty Vitamin B12 5000 mcg Sublingual Liquid, Cardiovascular Health & Cellular Energy Support, 2 Fl Oz (1 Count)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•CELLULAR ENERGY SUPPORT (1) Nature’s Bounty Vitamin B-12 Sublingual Liquid plays an important role in energy metabolism (1); it helps the body convert food into cellular energy your body needs (1)
•SUPPORTS HEART HEALTH (1) Nature’s Bounty Vitamin B-12 is commonly used to support the health of the cardiovascular and circulatory systems (1); Vitamin B-12 is also an important vitamin for maintaining healthy nerve cells (1)
•EASY-TO-TAKE LIQUID Nature’s Bounty Vitamin B-12 Sublingual Liquid makes it easy to get your daily dose of this essential nutrient; Simply place 1 mL daily under the tongue and hold there for 30 seconds before swallowing; You’ll love the delicious, natural berry flavor
•QUALITY IS OUR PRIORITY Nature’s Bounty is committed to the safety of all of our supplements; Our Vitamin B-12 liquid is gluten free; sugar free; contains no artificial colors or flavors; and is suitable for vegetarians
•FROM THE TRUSTED WELLNESS EXPERTS Nature’s Bounty Vitamin B-12 Sublingual Liquid is a product of nearly 50 years of dedication to quality; consistency and scientific research to make vitamins and nutritional supplements of unrivaled excellence

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$8.25

$8.80

-6%

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Natrol

Natrol Vitamin B12 5,000 mcg, Fast Dissolve Vitamin B12 Supplement Supports a Healthy Nervous System and Energy Metabolism, 200 Tablets, Up to a 200 Day Supply

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•VITAMIN B12 FOR ENERGY SUPPORT: Natrol Fast Dissolve Vitamin B12 5000 mcg energy support supplements help support energy metabolism and a healthy nervous system(1)
•FAST DISSOLVE SUPPLEMENT: These B12 Vitamins 5000 mcg deliver high-potency support(1)
•SUPPORTS RED BLOOD CELL FORMATION(1): Vitamin B12 is essential for healthy red blood cell formation, also provide cellular energy support(1)
•100% DRUG FREE SUPPLEMENT: This fast dissolving, 100% drug free dietary supplement provides Vitamin B12 tablets for up to a 100 day supply
•DRUG FREE SLEEP AID BRAND IN AMERICA(2): As the drug free sleep aid brand, we not only have formulas to help you fall asleep faster, we also offer fast-acting and effective formulas that can help calm your mind and body and maintain good health

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$16.58

$18.99

-13%

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Natrol

Natrol Vitamin B12 5,000 mcg, Fast Dissolve Vitamin B12 Supplement Supports a Healthy Nervous System and Energy Metabolism, 100 Tablets, Up to a 100 Day Supply

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•VITAMIN B12 FOR ENERGY SUPPORT: Natrol Fast Dissolve Vitamin B12 5000 mcg energy support supplements help support energy metabolism and a healthy nervous system(1)
•FAST DISSOLVE SUPPLEMENT: These B12 Vitamins 5000 mcg deliver high-potency support(1)
•SUPPORTS RED BLOOD CELL FORMATION(1): Vitamin B12 is essential for healthy red blood cell formation, also provide cellular energy support(1)
•100% DRUG FREE SUPPLEMENT: This fast dissolving, 100% drug free dietary supplement provides Vitamin B12 tablets for up to a 100 day supply
•#1 DRUG FREE SLEEP AID BRAND IN AMERICA(2): As the #1 drug free sleep aid brand, we not only have formulas to help you fall asleep faster, we also offer fast-acting and effective formulas that can help calm your mind and body and maintain good health

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$14.07

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NUTRAHARMONY

USDA Organic Vitamin B12 Sublingual Drops - 5000 mcg Liquid Vegan Methylcobalamin for Women & Men - Energy Boost, Focus & Mood, Brain Health Support - Maximize Absorption - 2 Month Supply, 2 fl oz

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Liquid Vitamin B12 Drops – a pledge of your vivacity and energy! B12 5000mcg – unbeatable & tasty support for your health goals! Formulated to support optimal levels of the vitamin to the body through fast absorption. B12 drops support mood, maintain brain health, and increase energy production.
•Focus, Mood & Energy - B12 drops for men & women are crafted to enhance mood and energy, helping you stay sharp and focused. Boost your overall health and well-being with our B12 vitamins.
•Brain Support – Stay smart & healthy. B12 liquid vitamin drops - unbeatable support for your health goals. Unleash the power of 5000 mcg of liquid B12 drops! Red & tasty vitamins with berry mix flavor support cognitive functions and memory at a high level, as well as maintain brain energy & functioning.
•Advanced Formula – GMO & sugar-free, and completely fabulous vegan vitamin B12! Vitamin B12 drops are manufactured in the USA using advanced technology to ensure the finest quality! That's why every drop of vitamin B12 liquid supplements is safe, effective, and meets industry standards.
•Made with Care & Love – At NUTRAHARMONY, we desire to provide you with quality and outstanding service. If, for any reason, you are not happy with vitamin B12 liquid, just let us know! Drop a message to our support team to share your outstanding experience with B12 liquid vitamins! And remember, we care for your well-being!

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$19.89

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Nature's Bounty

Nature's Bounty Vitamin B12, Supports Energy Metabolism and Nervous System Health, 5000mcg, 40 Quick Dissolve Tablets

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•FOR ENERGY 40-count, Vitamin B-12 5000mcg Tablets. Nature’s Bounty Quick Dissolve B-12 vitamins play an important role in energy metabolism in the body(1). They help the body convert food into the fuel which is used to produce cellular energy in the body(1).
•Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
•FOR YOUR HEART Nature’s Bounty Vitamin B-12 is a commonly used vitamin taken to support the health of the cardiovascular and circulatory systems(1).
•FOR YOUR NERVES Nature’s Bounty B-12 is an important vitamin for maintaining healthy nerve cells(1).
•PURITY IS OUR PRIORITY Nature’s Bounty is committed to safety and purity in all our supplements. Our quick-dissolve Vitamin B-12 tablets are suitable for vegetarians. They are gluten- and sugar-free, and contain no artificial colors, or sweeteners.
•FROM THE TRUSTED WELLNESS EXPERTS Nature’s Bounty Vitamin B-12 tablets are a product of nearly 50 years of dedication to quality, consistency and scientific research to make vitamins and nutritional supplements of unrivaled excellence.

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$6.96

$12.39

-44%

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Nature's Bounty

Vitamin B12 by Nature's Bounty, Quick Dissolve Vitamin Supplement, Supports Energy Metabolism and Nervous System Health, 5000mcg, 40 Tablets (Pack of 2)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•FOR ENERGY 80-count, 5000mg Vitamin B-12 Tablets. Nature’s Bounty Vitamin B-12 play an important role in energy metabolism in the body(1). They help the body convert food into the fuel which is used to produce cellular energy in the body(1).
•FOR YOUR HEART Nature’s Bounty Vitamin B-12 is a commonly used vitamin taken to support the health of the cardiovascular and circulatory systems(1).
•FOR YOUR NERVES Nature’s Bounty Vitamin B-12 is an important vitamin for maintaining healthy nerve cells.(1)
•PURITY IS OUR PRIORITY Nature’s Bounty is committed to safety and purity in all our supplements. Our Vitamin B-12 tablets are suitable for vegetarians. They are gluten and sugar-free, and contain no artificial colors, sweeteners or flavors.
•FROM THE TRUSTED WELLNESS EXPERTS Nature’s Bounty Vitamin B-12 tablets are a product of nearly 50 years of dedication to quality, consistency and scientific research to make vitamins and nutritional supplements of unrivaled excellence.

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$15.48

$18.34

-16%

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Nature Made

Nature Made Vitamin B12 3000 mcg, Easy to Take Sublingual B12 for Energy Metabolism Support, 40 Sugar Free Fast Dissolve Tablets, 40 Day Supply

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Energy metabolism support supplement: contains one 40 count bottle of Nature Made Vitamin B12 3000 mcg Fast Dissolve Tablets for a 40-day supply(1)
•These Nature Made Vitamin B12 fast dissolve tablets help break down food into energy that your body can use all day long
•B-12 vitamin helps support brain cell function and mood health (2)
•Vitamin B12 is important for proper red blood cell formation and helps reduce fatigue for those low in B12 vitamins
•Easy to take with a great tasting flavor; simply dissolve 1 tablet under tongue before swallowing. Adults take one Vitamin B12 tablet daily with a meal
•Made in the USA with quality global ingredients, these Vitamin B12 sublingual fast dissolve tablets are sugar free and have no color added
•United States Pharmacopeia (USP) Verified, #1 Pharmacist Recommended Vitamin & Supplement Brand*
•These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease

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$7.62

$14.29

-47%

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Solgar

Solgar Methylcobalamin (Vitamin B12) 5000 mcg, 60 Nuggets - Cherry Flavor - Supports Energy Metabolism - Body-Ready, Active Form - Non-GMO, Vegan, Gluten Free - 60 Servings

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Body-Ready B12; Solgar Methylcobalamin (Vitamin B12) 5000 mcg nuggets support general wellbeing; B12 plays different roles in the body to support energy metabolism; Assists in the release of energy from food
•Promote Nervous System Health And Support Energy Metabolism; Solgar Sublingual Methylcobalamin nuggets melt under the tongue; Promote normal blood cell formation and development
•Naturally Occurring, Metabolically Active; The body can readily absorb B12 as cobalamin, but must further convert to a coenzyme to become metabolically active; Solgar's coenzyme Vitamin B12 is bioidentical to one of the two active forms in the body
•Non GMO, Gluten & Dairy Free, Kosher; Solgar Vitamin B12 Methylcobalamin nuggets are suitable for vegans; A Vitamin B12 free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, and color
•The Gold Standard: For over 70 years Solgar has been committed to quality, health, and well-being. Our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest raw materials

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$11.84

$13.03

-9%

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NOW Foods

NOW Foods Supplements, Methyl B-12 (Methylcobalamin) 5,000 mcg, Nervous System Health*, 120 Lozenges

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•ESSENTIAL FOR ENERGY PRODUCTION*: Vitamin B-12 is necessary for the production of energy from fats and proteins and is well known for its critical role in DNA synthesis, as well as in homocysteine metabolism.*
•METHYLCOBALAMIN PLUS FOLIC ACID: Methyl B-12 is vegetarian/vegan (non-animal derived).
•CERTIFICATIONS/CLASSIFICATIONS: Kosher, Soy Free, Vegan
•GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
•Packaged in the USA by a family owned and operated company since 1968.

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$18.54

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