B-12 2500 mcg
21st Century
B-12 2500 mcg
4.7
★ ★ ★ ★ ★
(9255 ratings)
Vitamin B12 2500 mcg
Score 74
A high-dose, cost-effective B12 tablet (cyanocobalamin) providing strong support for energy and metabolic functions at an accessible price point.
Quantity: 110 Tablet(s) • (110 servings)
Goals: flag Cognitive Support flag Mood Support flag Energy flag Bone Health flag Brain Health
leaderboard Score 74
A high-dose, cost-effective B12 tablet (cyanocobalamin) providing strong support for energy and metabolic functions at an accessible price point.
insights Analysis
21st Century's B-12 2500 mcg tablet is a standout for its cost-effectiveness, delivering a powerful dose of cyanocobalamin at a fraction of the cost of many alternatives. This product is ideal for individuals who require a higher daily intake of B12 or are looking for a very economical way to maintain their levels. Despite being a traditional tablet (which can have lower bioavailability compared to sublingual or active forms), the sheer quantity of B12 per serving aims to ensure sufficient absorption for most users. Its popularity and high review count attest to its perceived efficacy and affordability among consumers.
- Very high dosage (2500 mcg) for robust B12 supplementation.
- Excellent price per serving, offering great affordability.
- Highly popular with a significant number of positive reviews.
- Simple and convenient tablet form.
- Uses cyanocobalamin, a synthetic form that requires bodily conversion.
- Standard tablet absorption may be less efficient for some individuals compared to sublingual or liquid alternatives.
- Individuals with severely impaired B12 absorption may still benefit more from active or sublingual forms.
$8.99($0.08 per serving)
 iHerb | $ 8.99 | |
 Amazon | $ 17.98 |
Ingredients
| Ingredient | Amount per serving |
|---|---|
Vitamin B12 | 2500 mcg |
Categories
Vitamin B12 74
This Vitamin B12 product is notable for its very high dosage and exceptional affordability, making it a compelling option for those needing significant B12 intake.
Goals
The high 2500 mcg dosage of B12 is well-suited to significantly support cellular energy production, helping to effectively combat fatigue and enhance overall vitality for many users.
With a strong B12 concentration, this supplement provides robust support for nerve function and contributes to the maintenance of healthy brain processes.
B12 is crucial for neurotransmitter synthesis, and the elevated dose in this product offers enhanced support for mood regulation and emotional balance.
95 Value 
Fully Active B12 1500 mcg
Doctor's Best
4.7
★★★★★
(30986 ratings)
Offers a superior, active form of B12 (Methylcobalamin) at a very competitive price per serving, providing excellent overall value.
93 Value 
Methyl B-12 1000 mcg Lemon Flavor
Jarrow Formulas
4.7
★★★★★
(11077 ratings)
Provides Methylcobalamin, the active form, at a similar price per serving to the original, but with the added benefit of a more bioavailable form, offering superior value.
85 Value 
Vitamin B-12 5000 mcg Fast Dissolve Strawberry Natural Flavor
Natrol
4.7
★★★★★
(44207 ratings)
Delivers a very high dose of Cyanocobalamin in a fast-dissolve form at the same price per serving, providing greater dosage and sublingual benefits for the cost.
95 Performance
Fully Active B12 1500 mcg
Doctor's Best
4.7
★★★★★
(30986 ratings)
Features Methylcobalamin, the active and highly bioavailable form of B12, generally preferred for superior absorption and efficacy.
98 Performance 
BioActive Folate & Vitamin B12
Life Extension
4.8
★★★★★
(10004 ratings)
Combines Methylcobalamin with active Folate, providing synergistic benefits for energy and cellular health, a superior choice for comprehensive B vitamin support.
90 Performance 
Chewable Fully Active B12 Chocolate Mint Flavor 1000 mcg
Doctor's Best
4.8
★★★★★
(1635 ratings)
Offers Methylcobalamin in a chewable format, which can enhance sublingual absorption, providing a higher quality and potentially more effective B12.
75 Budget 
B12 500 mcg
Sundown
4.7
★★★★★
(775 ratings)
Offers a basic Cyanocobalamin B12 at a significantly lower cost per serving for those prioritizing budget.
80 Budget 
B-12 1000 mcg
Nature's Bounty
4.7
★★★★★
(65813 ratings)
Provides a robust dose of Cyanocobalamin B12 at a much lower cost per serving, making it a highly economical option.
78 Budget 
B-12 500 mcg
21st Century
4.7
★★★★★
(10877 ratings)
A very affordable Cyanocobalamin B12 option, excellent for budget-conscious consumers, albeit at a lower dose.
95 Value
Fully Active B12 1500 mcg
Doctor's Best
4.7
★★★★★
(30986 ratings)
Offers a superior, active form of B12 (Methylcobalamin) at a very competitive price per serving, providing excellent overall value.
93 Value
Methyl B-12 1000 mcg Lemon Flavor
Jarrow Formulas
4.7
★★★★★
(11077 ratings)
Provides Methylcobalamin, the active form, at a similar price per serving to the original, but with the added benefit of a more bioavailable form, offering superior value.
85 Value
Vitamin B-12 5000 mcg Fast Dissolve Strawberry Natural Flavor
Natrol
4.7
★★★★★
(44207 ratings)
Delivers a very high dose of Cyanocobalamin in a fast-dissolve form at the same price per serving, providing greater dosage and sublingual benefits for the cost.
95 Performance
Fully Active B12 1500 mcg
Doctor's Best
4.7
★★★★★
(30986 ratings)
Features Methylcobalamin, the active and highly bioavailable form of B12, generally preferred for superior absorption and efficacy.
98 Performance
BioActive Folate & Vitamin B12
Life Extension
4.8
★★★★★
(10004 ratings)
Combines Methylcobalamin with active Folate, providing synergistic benefits for energy and cellular health, a superior choice for comprehensive B vitamin support.
90 Performance
Chewable Fully Active B12 Chocolate Mint Flavor 1000 mcg
Doctor's Best
4.8
★★★★★
(1635 ratings)
Offers Methylcobalamin in a chewable format, which can enhance sublingual absorption, providing a higher quality and potentially more effective B12.