---
product_id: 263865109
title: "Doctor's Best, Brain Magnesium Vegetable Capsules, 90 Count"
brand: "doctor's best"
price: "$88.24"
currency: USD
in_stock: true
reviews_count: 5
category: "Doctor's Best"
url: https://www.desertcart.us/products/263865109-doctors-best-brain-magnesium-vegetable-capsules-90-count
store_origin: US
region: United States of America
---

# Clinically studied Magtein for cognitive boost Non-GMO, Vegan, Gluten & Soy Free 150mg Magnesium L-Threonate per serving Doctor's Best, Brain Magnesium Vegetable Capsules, 90 Count

**Brand:** doctor's best
**Price:** $88.24
**Availability:** ✅ In Stock

## Summary

> 🧩 Unlock your brain’s full potential — don’t get left behind!

## Quick Answers

- **What is this?** Doctor's Best, Brain Magnesium Vegetable Capsules, 90 Count by doctor's best
- **How much does it cost?** $88.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/263865109-doctors-best-brain-magnesium-vegetable-capsules-90-count)

## Best For

- doctor's best enthusiasts

## Why This Product

- Trusted doctor's best brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Daily Mental Edge:** Easy-to-swallow veggie capsules designed for consistent brain health support.
- • **Clean & Conscious Formula:** Non-GMO, vegan-friendly, gluten and soy free to fit your healthy lifestyle.
- • **Superior Brain Absorption:** Highly bioavailable formula crosses the blood-brain barrier for maximum effect.
- • **Neuro-Boosting Magtein Power:** Patented Magnesium L-Threonate enhances synaptic plasticity for sharper focus and memory.
- • **Clinically Proven Cognitive Support:** Backed by research showing improved learning, memory, and reduced stress.

## Overview

Doctor's Best Brain Magnesium delivers 150mg of patented Magnesium L-Threonate (Magtein) per serving, clinically shown to enhance brain magnesium levels, supporting learning, memory, and cognitive function. This highly absorbable, vegan-friendly formula promotes synaptic health without common magnesium side effects, making it a premium choice for professionals seeking a mental edge.

## Description

Doctor’s Best Brain Magnesium contains Magnesium L-Threonate from Magtein, a unique magnesium compound that helps support the health of neurons and synaptic plasticity. Magtein helps support healthy levels of magnesium essential for brain connections (synapses) that facilitate learning, memory, concentration, and all other cognitive functions. Magtein performs better than other magnesium compounds for synapse support and is a breakthrough in brain health.*

Review: I have been consistently using Doctor's Best Brain Magnesium L-Threonate with Magtein (150 mg, 60 count) for several weeks. As I have been impressed with the results and the overall quality of this supplement, I felt it was time to write a review. The main advertised feature is the support of cognitive function using the patented Magtein formula (Magnesium L-Threonate), which is specifically designed for better brain absorption. After several weeks of daily use, I can say I feel an improvement in mental acuity and focus. It has become a part of my daily supplement regimen because of these benefits. Unlike some other supplements, I've experienced no negative side effects or the common magnesium-related GI upset. The product is very easy to incorporate into a daily routine. The recommended dosage of two capsules daily is clear and easy to follow. The gelatin capsules are easy to swallow for me, (though I have seen this mentioned as a drawback in other reviews) and have no residual taste or aftertaste. Every time I have ordered, the product has arrived with excellent packaging and a secure safety seal. Pros: Noticeable Cognitive Boost: Helped significantly with mental acuity and focus. Highly Absorbable Formula (Magtein): Effective at crossing the blood-brain barrier. Zero Side Effects: Has not caused me any gastrointestinal (GI) distress. Excellent Quality: Arrives consistently with secure packaging and safety seals. Cons (Area for Improvement): Cost/Value: The one major drawback for me is the price point. While the product's performance and quality are excellent, it is a bit expensive compared to other supplements. I wish it was sold in a larger size (e.g., a 90 or 120 count bottle) or offered at a better price per capsule, as this would make long-term use more economical. I would recommend this product to anyone looking to support their focus and mental clarity, especially if they are sensitive to other forms of magnesium. This may be a case of getting what you pay for ie., a premium supplement that has shown results for me.
Review: I was going to give this two weeks before I review, but my husband and I noticed it right away that it was helping. So maybe it's because we also take another brand of magnesium that we have some level of that in our bodies anyway. Regardless, our minds seem much clearer and a little sharper. I have read to give it two weeks, but we started this on the 21st, so I'll try to update later after several weeks. Here's the only thing. Doctor's Best has great products, but this is a bit expensive for us. We are both older, and we also take other things as well, so that is always money out of our pockets. Next time we're trying another brand that has excellent ratings on it like Doctor's Best, but there is more of it. We're going to try that next. If it doesn't work as well, we'll come back to this product because we already know it's good. I already take other Doctor's Best supplements, and I know how well they work. Too bad some companies don't have a senior citizen discount. That would help. Well, I know some do, but most do not have that. 2/3/2015: I've updated, but for some reason my update didn't go through. What I wanted to say is that I have insomnia, and just about a week ago have started sleeping better than I have in years. I'm thinking that it may be this product, plus it is seeming that I am sleeping much deeper. Not only that, I woke up Sunday morning and was feeling great, so much energy. Guess this stuff is working in more ways than just our brains.

## Features

- DOCTOR’S BEST BRAIN MAGNESIUM: Magnesium L-Threonate helps cells and connections. Magtein helps brain synapses with learning, memory, focus, and other cognitive activities by supporting magnesium levels
- ENHANCES LEARNGING & MEMORY: Magnesium supplements enhance learning and memory. Research shows that Magnesium L-Threonate increases brain magnesium levels, improving learning, working memory, and short- and long-term memory
- CLINICAL STUDIED: Magtein patented (Magnesium L-Threonate) is a super-mineral with strong evidence that it helps promotes brain health. Magtein consumption improved memory, cognitive ability and reduced stress
- HIGHLY BIOAVAILABLE FORM OF MAGNESIUM – L-Threonate chelates magnesium that enhances the bioavailability of magnesium by making it more absorbable
- Non-GMO, Vegan, Gluten Free, Soy Free

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008NIHCS4 |
| ASIN  | B008NIHCS4 |
| Age Range Description | Adult |
| Allergen Information | Gluten Free, Soy Free |
| Best Sellers Rank | #52,444 in Health ( See Top 100 in Health ) #1,125 in Mineral Supplements |
| Brand | Doctor's Best |
| Customer Reviews | 4.5 4.5 out of 5 stars (632) |
| Customer reviews | 4.5 4.5 out of 5 stars (632) |
| Date First Available | 7 August 2012 |
| Format | Capsule |
| Is Discontinued By Manufacturer  | No |
| Item model number  | DRB-00283 |
| Manufacturer  | Doctor’s Best, Inc |
| Product Dimensions  | 5.41 x 5.41 x 9.53 cm; 90.72 g |
| Product Name | Brain Magesium |
| Serving Recommendation | 3 veggie capsules |
| Units | 90 Count |
| Weight | 0.18 Kilograms |

## Product Details

- **Brand:** Doctor's Best
- **Flavour:** Vegetable
- **Item form:** Capsule
- **Primary supplement type:** Magnesium
- **Unit count:** 90 Count

## Images

![Doctor's Best, Brain Magnesium Vegetable Capsules, 90 Count - Image 1](https://m.media-amazon.com/images/I/61Oua4DT4zL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***E on 4 November 2025*

I have been consistently using Doctor's Best Brain Magnesium L-Threonate with Magtein (150 mg, 60 count) for several weeks. As I have been impressed with the results and the overall quality of this supplement, I felt it was time to write a review. The main advertised feature is the support of cognitive function using the patented Magtein formula (Magnesium L-Threonate), which is specifically designed for better brain absorption. After several weeks of daily use, I can say I feel an improvement in mental acuity and focus. It has become a part of my daily supplement regimen because of these benefits. Unlike some other supplements, I've experienced no negative side effects or the common magnesium-related GI upset. The product is very easy to incorporate into a daily routine. The recommended dosage of two capsules daily is clear and easy to follow. The gelatin capsules are easy to swallow for me, (though I have seen this mentioned as a drawback in other reviews) and have no residual taste or aftertaste. Every time I have ordered, the product has arrived with excellent packaging and a secure safety seal. Pros: Noticeable Cognitive Boost: Helped significantly with mental acuity and focus. Highly Absorbable Formula (Magtein): Effective at crossing the blood-brain barrier. Zero Side Effects: Has not caused me any gastrointestinal (GI) distress. Excellent Quality: Arrives consistently with secure packaging and safety seals. Cons (Area for Improvement): Cost/Value: The one major drawback for me is the price point. While the product's performance and quality are excellent, it is a bit expensive compared to other supplements. I wish it was sold in a larger size (e.g., a 90 or 120 count bottle) or offered at a better price per capsule, as this would make long-term use more economical. I would recommend this product to anyone looking to support their focus and mental clarity, especially if they are sensitive to other forms of magnesium. This may be a case of getting what you pay for ie., a premium supplement that has shown results for me.

### ⭐⭐⭐⭐⭐ Review
*by K***7 on 27 January 2015*

I was going to give this two weeks before I review, but my husband and I noticed it right away that it was helping. So maybe it's because we also take another brand of magnesium that we have some level of that in our bodies anyway. Regardless, our minds seem much clearer and a little sharper. I have read to give it two weeks, but we started this on the 21st, so I'll try to update later after several weeks. Here's the only thing. Doctor's Best has great products, but this is a bit expensive for us. We are both older, and we also take other things as well, so that is always money out of our pockets. Next time we're trying another brand that has excellent ratings on it like Doctor's Best, but there is more of it. We're going to try that next. If it doesn't work as well, we'll come back to this product because we already know it's good. I already take other Doctor's Best supplements, and I know how well they work. Too bad some companies don't have a senior citizen discount. That would help. Well, I know some do, but most do not have that. 2/3/2015: I've updated, but for some reason my update didn't go through. What I wanted to say is that I have insomnia, and just about a week ago have started sleeping better than I have in years. I'm thinking that it may be this product, plus it is seeming that I am sleeping much deeper. Not only that, I woke up Sunday morning and was feeling great, so much energy. Guess this stuff is working in more ways than just our brains.

### ⭐⭐⭐⭐ Review
*by D***D on 24 March 2014*

I am continuing to research and review forms of magnesium. I believe Doctor's Best may be the highest quality product I can purchse through Amazon. Magnesium L Threonate (MLT) is a novel form of magnesium.. The bioavailability via the Blood Brain Barrier may be exceptionally therapeutic for some and may prove problematic for others. As with all electrolytes, patients should be aware of problems related to elevated Mg levels (hypermagnesemia). Magnesium levels may need to be measured via blood tests given certain medical conditions as well as keeping a log of energy, mood and sleep. There are far fewer professionals/providers with the knowledge or willingness to moniter and advise than there are patients taking supplements. I had a conversation recently with a neuropsychiatrist regarding the promising studies of MLT for a number of issues but was warned of the potential for increased anxiety (mania). Supplements are a highly unregulated industry and we often take them as "drugs" for therapeutic responses as big pharma products without all that goes into making a drug as safe as possible (at a profit, of course). Not getting into that discussion; just saying.... I subtracted one star for the very large size capsule. I have problems swallowing this large product. I need to take them carefully, individually and with the right fluid+volume as well as proper head/neck position to be sure it does not lodge in the pharynx(back of throat)/throat/epigastric (lower esophagus to stomach entry) area. I take a wide variety of supplements and medications by the handful without incident. This is the most difficult for me to take. I have had to use choking "Heimlich maneuver"s or addtl food/beverage to dislodge from a panic feeling or push the capsule to drop free into my stomach. I have considered buying smaller gelatin capsules to divide this into a size I can handle (PIA). I continue to look for similar high quality MLT sold in smaller mg/caps. The episodes are very unpleasant.

## Frequently Bought Together

- Doctor's Best, Brain Magnesium Vegetable Capsules, 90 Count (Pack of 1)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*