Sports Research® Magnesium L-Threonate Capsules 2000mg – High-Absorption Magtein® for Enhanced Brain Health, Memory, Focus & Restful Sleep Support – Vegan · Non-GMO · Gluten Free – 90 Count

Price: $29.95
(as of May 18, 2026 03:06:44 UTC – Details)
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Product description

Sports Research Mag LT with Magtein

Magnesium L-Threonate is the only form of Magnesium that effectively crosses the blood-brain barrier, increasing magnesium levels in the brain critical for improving cognitive function.*

SUPPORT STARTS HERE Made with Magtein

Our formula contains Magtein, a patented form of magnesium developed by MIT researchers and clinically proven to cross the blood-brain barrier.*

A Superior Formula

Magnesium L-threonate is the salt formed from mixing magnesium and threonic acid, a water-soluble substance derived from the metabolic breakdown of vitamin C.*

Real Benefits, Quality Ingredients

Though softgels are favored, not all substances blend seamlessly or maintain ideal consistency. Our capsules provide superior adaptability without the additives found in tablets.

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Customer Reviews

4.7 out of 5 stars 2,312

4.7 out of 5 stars 53,447

4.7 out of 5 stars 59,482

4.7 out of 5 stars 32,654

4.5 out of 5 stars 15,063

4.5 out of 5 stars 180

4.5 out of 5 stars 4,078

Price

$29.95$29.95

$23.95$23.95

$27.95$27.95

$26.95$26.95

$19.95$19.95

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$19.95$19.95

What’s it for?

Memory & Cognition*

Bone & Immune Health*

Brain & Heart Health*

Brain & Body Fuel*

Relaxation & Focus*

Rehydration

Skin Hydration*

What’s inside?

Magnesium L-threonate

Vit. D3 & K2, Coconut MCT Oil

Wild Alaska Pollock Fish Oil

Organic MCT Oil from Coconut

L-Theanine, Coconut Oil

400mg Sodium, 200mg Potassium

Plant-Based Ceramides

Product form

Veggie-Capsule

Veggie-Softgel

Fish-Softgel

Liquid Oil

Liquid Softgel

Powder

Liquid Softgel

Diet Type

Vegan, Gluten & Dairy Free

Plant-Based, Vegan,Gluten-Free

Pescatarian, Keto, Gluten-Free

Keto, Vegan, Low-Carb

Gluten & Soy Free

Powder

Gluten & Soy Free

Non-GMO, Soy & Gluten-free

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Manufactured in cGMP facility

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Product Dimensions ‏ : ‎ 2.45 x 2.45 x 4.5 inches; 4.32 ounces
Item model number ‏ : ‎ FG377
Date First Available ‏ : ‎ January 1, 2022
Manufacturer ‏ : ‎ Sports Research
ASIN ‏ : ‎ B0B336FCWC
Best Sellers Rank: #1,658 in Health & Household (See Top 100 in Health & Household) #44 in Magnesium Mineral Supplements
Customer Reviews: 4.7 4.7 out of 5 stars (2,312) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
HIGHLY BIOAVAILABLE FORM: Magnesium L-threonate is the salt formed from mixing magnesium and threonic acid, a water-soluble substance derived from the metabolic breakdown of vitamin C. Easily absorbed, our magnesium L threonate capsules are used for their overall brain health benefits and may help support memory, focus, relaxation, mood, and cognition.
MADE WITH MAGTEIN: Magtein is a patented compound called threonic acid developed by a group of MIT researchers. Magtein is the only form that effectively crosses the blood-brain barrier and increases magnesium levels in the brain, which is critical for improving cognitive function. Our easy-to-swallow Magtein magnesium L-threonate veggie capsules are the easiest, most convenient way to add this essential mineral to your daily diet.
PREMIUM QUALITY: Sports Research takes pride in offering products that use only the best ingredients available so that you can have total peace of mind in the supplements that you are taking. Our magnesium supplement is verified non-GMO and free of gluten and gelatin.
MANUFACTURED IN THE USA: Our products are made in cGMP compliant facilities in the United States, using only the best ingredients from domestic & international origins. For us, it’s all about quality control – so you can have confidence in your dietary supplements. We offer ninety (90) magnesium pills for a one (1) month supply. Reap all the benefits of this powerful and healthy magnesium threonate supplement!
THE SPORTS RESEARCH DIFFERENCE: Created in 1980, Sports Research is a privately-owned business born from a passion for fitness, wellness, and healing. Our goal is to help people live their best lives through real, research-backed ingredients created for every body — inside and out.