Kappa Nutrition Powered by Magbrain™ Magnesium L-Threonate Plant-Based, 420mg Elemental Magnesium (3 Capsules) from 2,253mg, 90 Vegan Capsules, Brain, Sleep & Muscle Support.
$22.99
Price: $22.99
(as of Dec 30, 2025 02:15:27 UTC – Details)
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Product Dimensions : 2.4 x 2.4 x 4.6 inches; 3.53 ounces
Item model number : B09TGTBQQ6
Date First Available : March 3, 2022
Manufacturer : Kappa Nutrition
ASIN : B09TGTBQQ6
Best Sellers Rank: #1,824 in Health & Household (See Top 100 in Health & Household) #40 in Magnesium Mineral Supplements
Customer Reviews: 4.7 4.7 out of 5 stars (5,632) 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); } }); });
High-Potency Magnesium L-Threonate Plant-Based. Manufactured in Texas, USA. Each 3-capsule serving provides 420 mg elemental magnesium (280 mg per 2 capsules).
Supports Brain Function & Mental Clarity. Helps maintain healthy magnesium levels in the brain to support memory, focus, and cognitive performance.
Promotes Relaxation & Restful Sleep. Supports GABA and melatonin pathways to encourage calmness and healthy sleep cycles.
Muscle, Energy & Recovery Support. Plays a role in ATP energy production, neuromuscular function, and post-exercise recovery.
Bone & Heart Health + Quality Assurance. Supports bone density and cardiovascular wellness. Made in a cGMP-certified facility and third-party tested for purity, heavy metals, and label accuracy.
Customers say
Customers find this magnesium supplement effective, particularly for digestion and muscle cramps, while also improving cognitive thinking and brain fog. Moreover, the product receives positive feedback for its quality, with one customer noting it’s made to the highest standards, and customers appreciate its value for money. However, experiences with stomach discomfort are mixed, with some reporting it doesn’t upset their stomach while others experience nausea.
AI Generated from the text of customer reviews
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Amazon.com Price: $9.95 (as of 30/10/2025 13:51 PST- Details)Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.


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