Kappa Nutrition 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 Oct 03, 2025 07:06:29 UTC – Details)
Magbrain is a Magnesium L-Threonate Plant-Based supplement designed to support mind and body wellness. Proudly crafted in Texas, USA, and third-party tested for quality, each serving delivers 420 mg of elemental magnesium (3 capsules) or 280 mg (2 capsules). Magnesium is essential for more than 300 biochemical reactions in the body and supports healthy brain, muscle, heart, and bone function. This advanced formulation uses Magnesium L-Threonate Plant-Based for clean-label, high-potency performance. Supports: Memory, focus & cognitive performance* Relaxation, calmness & healthy sleep cycles* Muscle strength, energy & recovery* Bone density & cardiovascular health* Third-party tested for purity, heavy metals, and label accuracy, and produced in a cGMP facility.
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: #1,679 in Health & Household (See Top 100 in Health & Household) #37 in Magnesium Mineral Supplements
Customer Reviews: 4.7 4.7 out of 5 stars 5,214 ratings 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 for sleep, energy, and focus, with one noting it helps them sleep without medication. The product receives positive feedback for its quality, effectiveness in digestion, and ability to reduce muscle pain after exercise. Customers appreciate the different forms of magnesium it contains and consider it good value for money. While some customers report it doesn’t upset their stomach, others experience extreme nausea.
13 reviews for Kappa Nutrition Magbrain™ Magnesium L-Threonate Plant-Based, 420mg Elemental Magnesium (3 Capsules) from 2,253mg, 90 Vegan Capsules, Brain, Sleep & Muscle Support.
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Sonya –
The best Magnesium on the market
This magnesium supplement is the best I have ever used. My personal trainer recommended it to me and I would purchase through her company. But when she sold out, she provided me with the link she uses and now I order directly. I’ve been using this product for about a year now and it is a MUST have product for me as it helps give me energy and speeds up my metabolism. Food digests better and I just think my whole body works better. I ran out and was off of them for about two months, because I always got them from my trainer and had no idea I could get them through Amazon until she gave the link. I gained 5 lbs during this time. I take two capsules daily and have zero side effects. Amazing product!
Lyn –
Great product highly recommended!!!
I love this product and been taking it for almost a year now. It truly work wonders – I sleep a lot better (took care of my insomnia) and wake up feeling good with mental clarity, took care of my constipation problem. I’m 67 y.o female sort of feeling exhausted all the time and this product gave me daily dose of energy I needed. Satisfied customer here. This was recommended to me by a friend of which in turn I have recommended to other friends as well. It’s truly a great find!
esen –
functional
I have been taking magnesium complex supplements for a year. However, I was using a different brand and this is the first time I have tried this one. Since I started using it, I have noticed a significant reduction in muscle pain after exercise. Also, my sleep is no longer interrupted at night, and I can sleep through the night.
Gerardo Lopez –
Great product, shipping takes too long
I really like this magnesium complex brand it helps me stay asleep all night, when I don’t take it I’ll wake up a couple of times at night. I took a star because it takes forever to arrive.
Kathleen KruegerKeith –
Excellent product
I have tried other magnesium products that were way more expensive (Qualia)and this Kappa brand seems to have a great balance of magnesium that gets absorbed and transferred into my body quickly. When I stopped for a month and used the other brand, I felt stiff and slower than when I used this brand!! Excellent for people who want to take care of themselves and not just out for a quick fix!!
Sue89 –
Best Calcium
This product is one of the best combination of magnesium, particularly magnesium threonate that crosses the blood brain barrier and really works to clear the glymphatic system as well as helping the brain mitochondria work much better. Overall affecting energy and less brain fog.
e d derenberger –
Good and reasonable
It’s a good supplement I use it with another magnesium supplement. To replace the mag that is affected by my heart meds
annpolan –
Sleep like a baby!!!
This stuff is the only thing I’ve found on ten years besides taking a benedryl (bad for you) that makes me sleep and have a deep sleep where you wake up w that tingly feeling. Incredible.It does make my poops loose but I’d trade that for sleep every time and my doctor agrees lol
merline sularte –
my doc suggested this supplement to support my health, really effective
DM –
Uno de los mejores que he probado. Recomendado al 100%
Beatriz Zaragoza –
Es lo que necesitaba
Luis Uriel Angulo –
Me pareció una mezcla muy buena de magnesios. Bastante eficaz aunque un poco cara. No recomiendo tomarla en la mañana o durante el día porque a mí en lo personal me indujo mucho sueño sin importar la hora, lo ideal para mí es tomarlo una hora antes de dormir.
MONTSERRAT –
No sabe a nada eso es bueno