---
product_id: 263865106
title: "Magtein Magnesium L-Threonate Capsules (667mg, 180 Pieces)"
brand: "source naturals"
price: "110490CFA"
currency: XOF
in_stock: true
reviews_count: 5
category: "Source Naturals"
url: https://www.desertcart.sn/products/263865106-magtein-magnesium-l-threonate-capsules-667mg-180-pieces
store_origin: SN
region: Senegal
---

# 667mg per capsule - potent dose 180 capsules - 2 months supply Secure packaging - freshness guaranteed Magtein Magnesium L-Threonate Capsules (667mg, 180 Pieces)

**Brand:** source naturals
**Price:** 110490CFA
**Availability:** ✅ In Stock

## Summary

> 🧠 Elevate your mind, fuel your future with Magtein Magnesium!

## Quick Answers

- **What is this?** Magtein Magnesium L-Threonate Capsules (667mg, 180 Pieces) by source naturals
- **How much does it cost?** 110490CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/263865106-magtein-magnesium-l-threonate-capsules-667mg-180-pieces)

## Best For

- source naturals enthusiasts

## Why This Product

- Trusted source naturals brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Supply:** 180 capsules ensure uninterrupted daily use for optimal results
- • **Trusted by Thousands:** 4.6-star rating from over 1,300 users proves consistent satisfaction
- • **Freshness You Can Trust:** Secure packaging preserves potency and quality
- • **Clinically Backed Formula:** Magtein form of magnesium known for superior absorption and cognitive benefits
- • **Cognitive Boost in Every Capsule:** 667mg of Magtein Magnesium L-Threonate for enhanced brain support

## Overview

Magtein Magnesium L-Threonate Capsules deliver a potent 667mg dose per capsule in a secure 180-count package, designed to support cognitive function and brain health. Trusted by thousands with a 4.6-star rating, this clinically backed supplement offers superior magnesium absorption for sustained mental clarity and focus.

## Description

Rich in nutrients, this will be a perfect pick for you. Take it as directed to enjoy the best results. The product will meet your requirements perfectly.

Review: 毎日欠かさず飲んでいます。 安心感があります。 ありがとうございました。
Review: Product arrived on time. I had no issues purchasing

## Features

- Package include: 180 capsules
- Comes with secure packaging
- Take it as directed to enjoy the best results

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00AXTO30G |
| ASIN  | B00AXTO30G |
| Best Sellers Rank | #52,480 in Health ( See Top 100 in Health ) #1,120 in Mineral Supplements |
| Brand | Source Naturals |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,378) |
| Customer reviews | 4.6 4.6 out of 5 stars (1,378) |
| Date First Available | 8 January 2013 |
| Format | Capsules |
| Is Discontinued By Manufacturer  | No |
| Item model number  | SN2486 |
| Manufacturer  | Source Naturals |
| Product Dimensions  | 3.3 x 3.3 x 4.06 cm; 45.36 g |
| Serving Recommendation | 3 Capsules |
| Units | 180 Count |
| Weight | 0.54 Pounds |

## Product Details

- **Brand:** Source Naturals
- **Flavour:** Unflavored
- **Item form:** Capsules
- **Primary supplement type:** Magnesium
- **Unit count:** 180 Count

## Images

![Magtein Magnesium L-Threonate Capsules (667mg, 180 Pieces) - Image 1](https://m.media-amazon.com/images/I/61K88UFg5JL.jpg)

## Questions & Answers

**Q: 3 capsules contain 2 gm magnesium l-threonate and 144 mg of magnesium.  How much L-threonate is this?   Product label says nothing.**
A: Hi...  The l-threonate is just a metabolite (salt) of vitamin C that is bound to the magnesium as a chelation agent to supposedly make the magnesium more bioavailable, particularly in the brain.  It's not a substance that acts independently, or is counted independently, of the magnesium.  It takes 2 gm of magnesium l-threonate to get 144 mg of actual elemental magnesium, such as you might find in more commonplace magnesium supplements... it's just that binding the magnesium with a chelation agent (in this case l-threonate) may make each mg of magnesium more bioavailable (esp in the brain), than larger amounts of regular magnesium.  Wonder if you're thinking of, and maybe looking for, l-theanine?  That's a totally different substance (supposed to provide a relaxed alertness) from green tea.  If that's what you want, it is available as its own thing.

**Q: why does my bottle show Maltodextrin in the "other ingredients" but on the website label it does not show it?  I bought this based on the ingredients.**
A: This problem needs to be addressed and not pawned off. The June/July2016 reviews have a higher level of complaints. Update the photos if the manufacturer has changed ingredients!

**Q: why 2000 mg in some and 645 mg in others**
A: 2000 mg of magnesium threonate will yield 144 mg of elemental magnesium.  This seems to be the recommended daily dosage.  Three capsules, each containing 645 mg of magnesium threonate will be needed to give a daily dosage of 1935 mg (which is the same as 2000 mg within rounding error).  But some brands use two larger capsules to provide the recommended daily dosage and these may be harder to swallow for some people.

**Q: Is it best to take with food or on empty stomach?**
A: Best on an empty stomach.  I take 2 am and 1 pm.  Directions are 3 per day with 1 taken a few hours before bedtime and 2 taken during the day.  I read that magnesium absorbs best on an empty stomach and some supplement instructions recommend taking that way also.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by 香***子 on 26 May 2025*

毎日欠かさず飲んでいます。 安心感があります。 ありがとうございました。

### ⭐⭐⭐⭐⭐ Review
*by M***R on 4 June 2022*

Product arrived on time. I had no issues purchasing

### ⭐⭐⭐⭐⭐ Review
*by お***る on 15 December 2022*

メンタルの改善を目的にマグテインを購入しました。 目的の効果とは違いますが、不思議と漢字が書けるようになりました。もともと漢字を書くのが苦手で、読めるけど書けない、なんとなくは解るんだけど書けない、みたいな感じだったのですが、マグテインを飲むようになってから不思議と漢字が書けるようになって驚きました。脳に効いているんだと思います。

## Frequently Bought Together

- Source Naturals Magtein Magnesium L-Threonate, 667mg, Supports Focus, Mood, Healthy Memory, Cognitive Function - 180 Capsules
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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-22*