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Source Naturals

Magtein Magnesium L-Threonate

Item | SN622

  • For cognitive and memory support



  • Crosses the blood-brain barrier for improved absorption



  • A trademarked form of magnesium


$42.99
Other Sizes Available

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Supplement Facts

Serving Size 3 Capsules

Servings Per Container 60

Amount Per Serving   % Daily Value
Calories 10  
Magnesium 144 mg 36%
(as magnesium L-threonate)    
Magtein® (magnesium L-threonate) 2 g

†Daily Value not established.

Other ingredients: gelatin (capsule), maltodextrin, silica, and magnesium stearate.

Suggested Use: 3 capsules daily, preferably in divided doses. Start with 1 capsule daily and gradually increase to 3 capsules daily.

CAUTION: Not recommended for use by children or women who are pregnant, may become pregnant, or breastfeeding. If you are taking any prescription drugs, consult your health care professional before using this product.

STORE IN A COOL, DRY PLACE.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

  • Contains no yeast, dairy, egg, gluten, soy or wheat.
  • Contains no salt, preservatives, or artificial color, flavor or fragrance.

Magtein® is a registered trademark of Magceutics®, Inc. and is distributed exclusively by AIDP, Inc.

  • For cognitive and memory support



  • Crosses the blood-brain barrier for improved absorption



  • A trademarked form of magnesium


Unlike most magnesium supplements, Source Naturals Magtein™ Magnesium L-Threonate crosses the blood-brain barrier, making it more easily absorbed and assimilated. Magnesium L-Threonate has been shown to support cognitive health as well as memory function.

Terms and Ingredient Definitions

Shipping Weight: .46 lbs

Gluten-Free

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

MSRP: $57.25

For our website and catalog, the MSRP is the "Manufacturer's Suggested Retail Price." The MSRP is understood to mean the price at which a manufacturer will recommend a retailer sell a product for in stores, on the internet, or in catalogs. The MSRP of National brand items are dictated to Swanson by each manufacturer. For Swanson brand items, the MSRP is calculated based on a varying percentage above the product's base price.

Disclaimer: Product reviews are provided for informational purposes only. The information or opinions expressed therein are solely those of the contributors and do not necessarily represent those of Swanson Health Products and its employees. Please read full product reviews disclaimer.
1-5 of 7 reviews
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Great Magnesium!
We were happy to find Magtein good quality supplement!
Quality: 5.0 / 5.0
Value: 5.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
MAGTEIN WORKS FOR MY BRAIN
PERFECT. HELPS MY BRAIN NATURALLY
Quality: 4.0 / 5.0
Value: 4.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
Works great, I’ve been taking for 2 plus years now.
Quality: 4.0 / 5.0
Value: 3.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
Keeps my brain sharp
So I take various supplements tor the brain, and this is another to keep my brain sharp. As we age, we can lose of cognitive faculties, thankful to use this product.
Quality: 5.0 / 5.0
Value: 5.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?
The most helpful form of Magnesium I have found.
I have tried many forms of Magnesium, but Magtein is by far the best for my mental focus. Source Naturals is the best value I have found, and Swanson is the best place to get Magtein. Fast shipping with the zero shipping cost option seals the deal. This is my second or third Swanson order. I will be back for more when this supply has been used. Thank you/
Quality: 5.0 / 5.0
Value: 5.0 / 5.0
Effectiveness: 5.0 / 5.0
Convenience: 5.0 / 5.0
Satisfaction: 5.0 / 5.0
Helpful?

Swanson Health started in 1969 in Fargo, ND with a mission to offer pure and potent health products at a great value. Over 50 years later, we continue to innovate science-backed vitamins and supplements, delivering wellness solutions that help people live simply healthier together, and find vitality at any age. Click here to learn more about us.

For over 50 years, Swanson Health's research and development team has delivered science-backed health and wellness products to people around the world. Our innovation is guided by clinical research, scientific consensus, emerging research and usage traditions, creating products that help you find vitality at any age. At Swanson, we don't hide our science behind proprietary formulas — we believe in easy-to-read, transparent labelling. What's printed on our labels, is exactly what you'll find in our products.

Swanson Health's purity and potency testing begins with our ingredient sourcing, continues through manufacturing, and goes beyond when a product hits the shelf. Our testing exceeds industry standards, ensuring each product meets our quality guarantees for purity and potency. Swanson facilities are Good Manufacturing Practices (GMP) certified, and we voluntarily participate in third-party, independent laboratory testing. With Swanson, you can be sure you're getting the most pure and potent health products at a great value. Click here to learn more about our quality standards.

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