US
Bronson

Bronson Vitamin B12 1000 mcg Sustained Release Premium Non GMO Tablets Supports Nervous…

  • Vitamin B12
  • Tablet
  • Vitamin B12
  • 100
4.7/ 5 on Amazon3,000Amazon ratings2,000+bought last month4.5ProductDome score
  • More reviewed than 57%
High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want a slow release B12 tablet rather than a capsule or sublingual format

A straightforward, non-GMO sustained release B12 tablet at a common 1000 mcg dose, built for people supplementing energy and nervous system support daily.

View current price on Amazon →

As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.

ProductDome scorecard

How it ranks among the 130 vitamin b12 we track

4.5/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.7★4.7

4.7★ across 3,000 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 2,250 ratings4.3

3,000 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.5

2,000+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 130 vitamin b12 we track - how the scorecard works · full vitamin b12 data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

Bronson's B12 tablet delivers 1000 mcg of vitamin B12 in a sustained release tablet, formulated non-GMO, in a 100 count bottle aimed at nervous system and energy support.

Sustained release means the tablet is built to release its B12 gradually rather than all at once, which is the main thing separating it from a standard immediate release B12 tablet at the same dose. As a water soluble vitamin, B12 the body does not use gets excreted rather than stored, which is the usual reasoning behind a sustained release format.

  • 1000 mcg vitamin B12 per tablet
  • Sustained release delivery
  • 100 tablets per bottle
  • Non-GMO formulation

Who it's for

Aimed at people supplementing B12 for energy or nervous system support, particularly anyone on a diet that limits B12 rich animal foods. Not a substitute for treating a lab-confirmed B12 deficiency, which typically needs a doctor's guidance on dose and form.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • 1000 mcg dose per tablet, a common B12 supplementation level
  • Sustained release format
  • 100 count bottle, over three months at one tablet daily
What to check first
  • Tablet form may absorb less reliably than sublingual or liquid B12 for some people
  • Unflavored, plain tablet

Performance notes

The sustained release tablet is built to extend how long the B12 stays available for absorption, compared with a tablet that dissolves and releases its full dose right away.

Specifications

BrandBronson
Model35A
FormTablet
Supplement TypeVitamin B12
Count100
FlavorUnflavored
BenefitsHealth
DietKeto

How it compares

This product against the closest alternatives we track in vitamin b12.

ProductAmazon ratingRatingsProductDome score
Bronson Vitamin B12 1000 mcg Sustained Release Premium Non GMO Tablets Supports Nervous…This product4.7 / 53,0004.5 / 5
Nature's Bounty Vitamin B12 2500 mcgNature’s4.8 / 526,8004.7 / 5
Nature Made Vitamin B12 1000 mcgNATURE4.8 / 521,4004.7 / 5
Solgar Vitamin B12 1000 mcgSolgar4.8 / 511,5004.7 / 5
Natrol Vitamin B12 5000 mcg Fast Dissolve B12 SupplementNatrol4.7 / 540,3004.6 / 5
Frequently asked

Questions about the Bronson 35A

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What dose of B12 does Bronson's tablet provide?

Each tablet provides 1000 mcg of vitamin B12.

How many tablets come in a bottle?

The bottle contains 100 tablets.

Is this a sustained release formula?

Yes, it is formulated as a sustained release tablet rather than an immediate release one.