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Cheapest Vitamin B12 on iHerb

Ranked by real cost per 1,000 mcg of Vitamin B12 — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 3.0× more per 1,000 mcg of Vitamin B12 than the best-value pick Vitamatic. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 1,000 mcg
1
Vitamatic, Methyl B-12, 10,000 MCG, 60 Lozenges
Vitamatic, Methyl B-12, 10,000 MCG, 60 Lozenges
Vitamatic
10,000 mcg609.990.017View on iHerb →
2
Vitamatic, Methyl B12, Natural Berry, 240 Fast Dissolve Tablets
Vitamatic, Methyl B12, Natural Berry, 240 Fast Dissolve Tablets
Vitamatic
5,000 mcg24019.990.017View on iHerb →
3
Vitamatic, Methyl B12, Natural Berry, 240 Fast Dissolve Tablets
Vitamatic, Methyl B12, Natural Berry, 240 Fast Dissolve Tablets
Vitamatic
2,500 mcg24011.240.019View on iHerb →
4
Nutricost, Vitamin B12, 5,000 mcg, 240 Capsules
Nutricost, Vitamin B12, 5,000 mcg, 240 Capsules
Nutricost
5,000 mcg24022.950.019View on iHerb →
5
Vitamatic, Vitamin B12, Natural Berry, 365 Fast Dissolve Tablets (2,500 mcg per Tablet)
Vitamatic, Vitamin B12, Natural Berry, 365 Fast Dissolve Tablets (2,500 mcg per Tablet)
Vitamatic
5,000 mcg18219.990.022View on iHerb →
6
Vitamatic, Vitamin B12, Berry, 1,000 mcg, 365 Fast Dissolve Tablets
Vitamatic, Vitamin B12, Berry, 1,000 mcg, 365 Fast Dissolve Tablets
Vitamatic
1,000 mcg3659.990.027View on iHerb →
7
Nature's Life, B-12 Drops, Mixed Berry, 5,000 mcg, 4 fl oz (120 ml)
Nature's Life, B-12 Drops, Mixed Berry, 5,000 mcg, 4 fl oz (120 ml)
Nature's Life
5,000 mcg20028.090.028View on iHerb →
8
Nutricost, Vitamin B12, 5,000 mcg, 120 Capsules
Nutricost, Vitamin B12, 5,000 mcg, 120 Capsules
Nutricost
5,000 mcg12016.950.028View on iHerb →
9
Best Naturals, Vitamin B-12 (Methylcobalamin), 6,000 mcg, 120 Tablets
Best Naturals, Vitamin B-12 (Methylcobalamin), 6,000 mcg, 120 Tablets
Best Naturals
6,000 mcg12021.500.030View on iHerb →
10
Vitamatic, Methyl B12 & Folate, Berry, 120 Fast Dissolve Tablets
Vitamatic, Methyl B12 & Folate, Berry, 120 Fast Dissolve Tablets
Vitamatic
5,000 mcg12017.990.030View on iHerb →
11
Futurebiotics, Methyl B-12, Cherry, 5,000 mcg, 90 Vegetarian Lozenges
Futurebiotics, Methyl B-12, Cherry, 5,000 mcg, 90 Vegetarian Lozenges
Futurebiotics
5,000 mcg9014.990.033View on iHerb →
12
Natrol, Vitamin B-12, Fast Dissolve, Strawberry, 5,000 mcg, 100 Tablets
Natrol, Vitamin B-12, Fast Dissolve, Strawberry, 5,000 mcg, 100 Tablets
Natrol
5,000 mcg10017.340.035View on iHerb →
13
Nutricost, Vitamin B12, 2,000 mcg, 240 Capsules
Nutricost, Vitamin B12, 2,000 mcg, 240 Capsules
Nutricost
2,000 mcg24017.950.037View on iHerb →
14
LifeSeasons, Essentials, Methylcobalamin Vitamin B12, Berry, 10,000 mcg, 60 Quick Melts
LifeSeasons, Essentials, Methylcobalamin Vitamin B12, Berry, 10,000 mcg, 60 Quick Melts
LifeSeasons
10,000 mcg6024.000.040View on iHerb →
15
Bio Nutrition, Vitamin B-12, Cherry, 6,000 mcg, 50 Chewable Tablets
Bio Nutrition, Vitamin B-12, Cherry, 6,000 mcg, 50 Chewable Tablets
Bio Nutrition
6,000 mcg5012.050.040View on iHerb →
16
Nature's Truth, Sublingual B-12, Natural Berry, 10,000 mcg, 2 fl oz (59 ml)
Nature's Truth, Sublingual B-12, Natural Berry, 10,000 mcg, 2 fl oz (59 ml)
Nature's Truth
10,000 mcg3013.400.045View on iHerb →
17
Superior Source, Cyanocobalamin B-12, 10,000 mcg, 60 MicroLingual Instant Dissolve Tablets
Superior Source, Cyanocobalamin B-12, 10,000 mcg, 60 MicroLingual Instant Dissolve Tablets
Superior Source
10,000 mcg6026.990.045View on iHerb →
18
California Gold Nutrition, Methyl B12 Complex with Folate, Biotin and Vitamin B6, Cherry, 100 Lozenges
California Gold Nutrition, Methyl B12 Complex with Folate, Biotin and Vitamin B6, Cherry, 100 Lozenges
California Gold Nutrition
3,000 mcg10014.590.049View on iHerb →
19
Nature's Bounty, B-12, Sublingual Liquid, 5,000 mcg, 2 fl oz (59 ml)
Nature's Bounty, B-12, Sublingual Liquid, 5,000 mcg, 2 fl oz (59 ml)
Nature's Bounty
5,000 mcg5914.400.049View on iHerb →
20
Nutricost, Vitamin B12, 2,000 mcg, 120 Capsules
Nutricost, Vitamin B12, 2,000 mcg, 120 Capsules
Nutricost
2,000 mcg12011.950.050View on iHerb →
21
Doctor's Best, Chewable Fully Active B12, Mixed Berries , 5,000 mcg, 60 Tablets
Doctor's Best, Chewable Fully Active B12, Mixed Berries , 5,000 mcg, 60 Tablets
Doctor's Best
5,000 mcg6014.990.050View on iHerb →
22
Vitamatic, Methyl B-12 Gummies, Natural Cherry, 120 Gummies (2,500 mcg per Gummy)
Vitamatic, Methyl B-12 Gummies, Natural Cherry, 120 Gummies (2,500 mcg per Gummy)
Vitamatic
5,000 mcg6014.990.050View on iHerb →
23
Micro Ingredients, Vitamin B12, Strawberry, 240 Chewable Tablets (2,500 mcg per Tablet)
Micro Ingredients, Vitamin B12, Strawberry, 240 Chewable Tablets (2,500 mcg per Tablet)
Micro Ingredients
5,000 mcg12029.990.050View on iHerb →
24
Vitamatic, Methyl B-12 Gummies, Natural Cherry, Sugar Free, 240 Gummies (2,500 mg per Gummy)
Vitamatic, Methyl B-12 Gummies, Natural Cherry, Sugar Free, 240 Gummies (2,500 mg per Gummy)
Vitamatic
5,000 mcg12029.990.050View on iHerb →
25
Vitamatic, Methylcobalamin B12, Natural Berry, 5,000 mcg, 2 fl oz (59 ml)
Vitamatic, Methylcobalamin B12, Natural Berry, 5,000 mcg, 2 fl oz (59 ml)
Vitamatic
5,000 mcg5914.990.051View on iHerb →

How we rank Vitamin B12

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.