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Bronson 35A Check price on Amazon

Bronson Vitamin B12 1000 mcg Sustained Release Premium Non GMO Tablets Supports Nervous System, Healthy Brain Function and Energy Production, 100 Count Review

By Marcus Ivory · Devices writer · Published 2026-06-15 · Updated 2026-07-04

4.7 (3,000) Amazon rating$7.992,000+ bought last month

Our verdict

This is a sustained-release B12 tablet at 1000 mcg, 100 to a bottle, priced under $8. It suits anyone who wants a once-daily tablet designed to release gradually rather than all at once.

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Best for

People who want an unflavored, swallowed tablet with a sustained-release design and a keto-friendly label, at a low price point.

Skip if

Skip it if you want a chewable, lozenge, or liquid form instead of a swallowed tablet.

  • Form Tablet
  • Count 100 Count
  • Flavor Unflavored
  • Type Vitamin B12
  • Diet Keto
  • Benefits Health
  • Priced 47% below the category median ($15.07 across 130 tracked models)

Pros

  • Sustained-release tablet format
  • Keto-friendly labeling
  • Low price for a 100-count bottle
  • Solid 4.7-star rating across 3,000 reviews

Cons

  • Tablet must be swallowed, unlike chewable or liquid options
  • Label lists benefits only in general terms, without much detail

Our scorecard

4.7/5 overall
  • Owner rating4.7/5

    4.7 average across 3,000 owner ratings

  • Popularity2.9/5

    3,000 owner reviews, more than most models here

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

This tablet delivers 1000 mcg of B12 in a sustained-release format, unflavored, 100 to a bottle, and keto-labeled, at around $7.99. The sustained-release design is a formulation choice meant to spread the dose out over time rather than release it all at once.

It holds a 4.7-star average from 3,000 reviews, with about 2,000 units bought in the past month, putting it in solid mid-pack territory among B12 tablets on this list.

The label describes its benefits in fairly general terms, without a lot of specific wording, so shoppers looking for a plain, keto-friendly, sustained-release tablet are the best fit here.

Specifications

FormTablet
Count100 Count
FlavorUnflavored
TypeVitamin B12
DietKeto
BenefitsHealth

Performance notes

This tablet is built as a sustained-release formula, meant to release its 1000 mcg of B12 gradually rather than all at once, and it is unflavored and keto-labeled. The bottle holds 100 tablets, a straightforward once-daily count.

What buyers say

It holds a 4.7-star average from 3,000 reviews, with about 2,000 bought in the past month, putting it in solid mid-pack territory among B12 tablets.

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More from Bronson

Similar home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters to consider

Frequently asked questions

What does 'sustained release' mean for this tablet?

It means the tablet is formulated to release its B12 gradually rather than all at once, which is a manufacturing choice rather than a medical claim.

Is this okay on a keto diet?

The label marks it keto-friendly, though as with any supplement it is worth checking the full ingredient list yourself against your specific diet plan.

Should I ask a doctor before adding this to my routine?

This page is general product information, not medical advice. If you take other medications or have a health condition, check with a healthcare professional first.

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