---
product_id: 7194708
title: "Magtein Magnesium L-Threonate 667mg Supports Focus, Mood, Healthy Memory, Cognitive Function, Sleep* - 90 Capsules"
brand: "source naturals"
price: "1781329₫"
currency: VND
in_stock: true
reviews_count: 8
url: https://www.desertcart.vn/products/7194708-magtein-magnesium-l-threonate-667mg-supports-focus-mood-healthy-memory
store_origin: VN
region: Vietnam
---

# Sleep Support Stress Resilience Cognitive Boost Magtein Magnesium L-Threonate 667mg Supports Focus, Mood, Healthy Memory, Cognitive Function, Sleep* - 90 Capsules

**Brand:** source naturals
**Price:** 1781329₫
**Availability:** ✅ In Stock

## Summary

> 🧘‍♂️ Elevate Your Mind, Elevate Your Life!

## Quick Answers

- **What is this?** Magtein Magnesium L-Threonate 667mg Supports Focus, Mood, Healthy Memory, Cognitive Function, Sleep* - 90 Capsules by source naturals
- **How much does it cost?** 1781329₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/7194708-magtein-magnesium-l-threonate-667mg-supports-focus-mood-healthy-memory)

## 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

- • **Mood Uplift:** Experience a natural lift in mood and energy levels.
- • **Sleep Like a Pro:** Improve your sleep quality for a refreshed tomorrow.
- • **Trust in Quality:** Manufactured in the USA under strict cGMP standards.
- • **Elevate Your Mind:** Unlock enhanced focus and cognitive function with every capsule.
- • **Decades of Excellence:** Join the community that has trusted Source Naturals for over 40 years.

## Overview

Source Naturals Magtein Magnesium L-Threonate offers a unique blend of cognitive support, enhancing focus, mood, and memory while promoting better sleep. With 667mg per capsule and over 40 years of trusted manufacturing in the USA, this supplement is your go-to for optimal mental performance.

## Description

Source Naturals Magtein Magnesium L-Threonate 667mg Supports Focus, Mood, Healthy Memory, Cognitive Function, Sleep* - 90 Capsules

## Features

- "MAGTEIN BENEFITS. Known to increase resilience to stress, lift mood, raise your energy levels, improve concentration and focus and reformation of sleep quality."
- "BENEFITS COGNITIVE ABILITY. There are 4 aspects of cognitive ability that they were positively effected by taking Magtein, episodic memory, working memory, executive function, and attention."
- "EXCELLENT SOURCE OF MAGNESIUM L THREONATE. There are countless ways to get other forms of magnesium naturally in your diet, but food sources of magnesium L threonate do not exist because it’s a synthesized form."
- OVER 40 YEARS OF TRUST. source naturals was created in 1982 by ceo ira goldberg to support everyone’s potential to enjoy optimal health.
- "MANUFACTURED IN THE USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration. (FDA)"

## Product Details

- **Brand:** Source Naturals
- **Item Form:** Capsule
- **Primary Supplement Type:** Magnesium
- **Unit Count:** 90.0 Count
- **Flavor:** Unflavored

## Images

![Magtein Magnesium L-Threonate 667mg Supports Focus, Mood, Healthy Memory, Cognitive Function, Sleep* - 90 Capsules - Image 1](https://m.media-amazon.com/images/I/71CWSQLqM1L.jpg)

## Available Options

This product comes in different **Size, Flavor** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Magtein, reg trademarked Magnesium Threonate, works for relaxation, sleep
*by S***0 on July 7, 2025*

Amazing product, leagues above the rest

### ⭐⭐⭐⭐⭐ Excellent form for brain health.
*by D***H on April 2, 2025*

Having been taking this for years, this L-threonate is one of the better versions of magnesium. I have found that taking it in the morning or afternoon is better than the evening for me, but some people report having better experience, taking it in the evening before bed.Either way having tried bisglycinate, citrate, malate and many other forms, this is my choice that I take daily.

### ⭐⭐⭐⭐⭐ Excellent Product. After much research, this rose to the top.
*by S***L on July 11, 2025*

Excellent Product. After much research, this rose to the top.

## Frequently Bought Together

- Source Naturals Magtein Magnesium L-Threonate 667mg Supports Focus, Mood, Healthy Memory, Cognitive Function, Sleep* - 90 Capsules
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**Shop now:** [https://www.desertcart.vn/products/7194708-magtein-magnesium-l-threonate-667mg-supports-focus-mood-healthy-memory](https://www.desertcart.vn/products/7194708-magtein-magnesium-l-threonate-667mg-supports-focus-mood-healthy-memory)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-23*