Price: $29.95
(as of Feb 16, 2026 21:00:29 UTC – Details)
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.*
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 Experience
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.*
A Superior Experience
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.*
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Customer Reviews
4.7 out of 5 stars 1,957
4.7 out of 5 stars 50,617
4.7 out of 5 stars 57,142
4.7 out of 5 stars 26,275
4.4 out of 5 stars 14,943
4.2 out of 5 stars 1,616
4.4 out of 5 stars 4,033
Price
$29.95$29.95
$23.95$23.95
$27.95$27.95
$26.95$26.95
$19.95$19.95
$22.95$22.95
$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; 0.07 ounces
Item model number : FG377
Date First Available : January 1, 2022
Manufacturer : Sports Research
ASIN : B0B336FCWC
Best Sellers Rank: #1,494 in Health & Household (See Top 100 in Health & Household) #35 in Magnesium Mineral Supplements
Customer Reviews: 4.7 4.7 out of 5 stars (1,957) 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.
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