15 Best Magnesium L-Threonate Supplements Revealed

Discover the best magnesium L-threonate for sharper focus and better sleep with our quick, expert-curated guide to top supplements designed for your brain.
BrandMy RatingPrice
Unknown
Affordable Winner
9.0/10
Now Foods
Best for Brain Health
9.2/10
Dr. Mercola
Best for Memory Support
9.2/10
Magtein
Best for Sleep Improvement
9.0/10
Double Wood Supplements
9.2/10

Best Magnesium L-Threonate

Unlock the secret to sharper focus and enhanced cognitive clarity with the best magnesium L-threonate on the market. This powerful supplement is celebrated for its ability to traverse the blood-brain barrier, fueling your brain’s powerhouse functions. Dive in as we sift through the top options to help you find your ideal mental boost, quickly and effortlessly.

Affordable Winner: Magnesium L-Threonate

Magnesium L-Threonate Capsules – High Absorption Magnesium Supplement – Bioavailable Form for Rest and Cognitive Function Support – 1,800 mg – 90 Count
Highlights
Enhances cognitive function
Supports memory improvement
Good absorption rate

Magnesium L-threonate is renowned for its ability to boost cognitive function and support memory, making it a smart choice for brain health.

This particular supplement boasts a high dose of magnesium with excellent absorption, ensuring your brain gets the nutrients it craves.

While it is on the pricier side and can be a bit tricky to find, it offers complex benefits at a lower price point compared to other options, earning its spot as our “Affordable Winner.” Just watch out for possible gastrointestinal discomfort—some users report mild stomach issues.

Overall, it’s an effective, cost-conscious way to elevate your mental clarity.

Be sure to also check out the best magnesium l-threonate powder for more options! Also, here is the price history so you know exactly when to buy!

Price history for Magnesium L-Threonate on Amazon

Best for Brain Health: NOW Magtein

NOW Foods Supplements, Magtein™ with patented form of Magnesium (Mg), Cognitive Support*, 90 Veg Capsules
Highlights
Supports brain health
Easily crosses blood-brain barrier
No negative side effects

With 2 grams of Magtein, the patented form of magnesium that easily crosses the blood-brain barrier, it delivers cognitive support where it counts.

We've noticed enhanced mental clarity, better learning capabilities, and a relaxed mood without any negative side effects.

The convenient capsule dosing—although three times a day—fits well into our routines, and knowing it's made and rigorously tested in the USA adds an extra layer of confidence.

While it’s a bit pricier and requires some routine commitment, it's a top contender for anyone serious about boosting brain health.

Be sure to also check out the best magnesium threonate gummies for more options! Also, here is the price history so you know exactly when to buy!

Price history for NOW Magtein on Amazon

Best for Memory Support: Dr. Mercola Magnesium

Dr. Mercola Magnesium Advanced, 30 Servings (90 Capsules), Dietary Supplement, Magnesium L-Threonate, Non-GMO
Highlights
Supports brain function
Reduces gastrointestinal discomfort
High absorption rate

Magnesium L-Threonate from Dr.

Mercola is a standout for memory support, thanks to its superior absorption and targeted brain benefits.

The 2000 mg dose per serving helps penetrate cell membranes, promoting clearer and calmer thinking—perfect for boosting cognitive function.

Plus, it's designed to be gentler on your stomach, reducing gastrointestinal discomfort common with other magnesium supplements.

While the product size is small and the price a bit higher, its premium quality and extensive scientific backing make it a reliable choice for anyone looking to enhance memory and mental clarity.

Be sure to also check out the best magnesium threonate supplement brand for more options! Also, here is the price history so you know exactly when to buy!

Price history for Dr. Mercola Magnesium on Amazon

Best for Sleep Improvement: Magtein

Magnesium L-Threonate, Improve Brain Health, Memory, Cognition, Stress Relief and Sleep Quality - 60 Veg Capsules (30 Days Supply)
Highlights
Supports brain health
Enhances sleep quality
High absorption rate

Magtein's patented formula truly shines when it comes to sleep support, thanks to its focus on boosting magnesium levels directly in the brain.

We love how efficient the absorption is—just two capsules deliver an impressive 2,042 mg of brain magnesium in a day, helping to promote deep, restful sleep and quicker recovery.

The blend of Vitamin C and D enhances absorption, making each dose count.

Plus, it's made with high-quality, non-GMO ingredients, free from unnecessary fillers.

While it may be a bit pricier and has limited reviews, for those seeking focused sleep benefits with cognitive support, this one’s a clear standout.

Be sure to also check out the best magnesium citrate gummies for more options! Also, here is the price history so you know exactly when to buy!

Price history for Magtein on Amazon

Double Wood Magnesium L Threonate

Magnesium L Threonate Capsules (Magtein) – High Absorption Supplement – Bioavailable Form for Sleep and Cognitive Function Support – 2,000 mg – 100 Capsules
Highlights
Supports brain magnesium levels
Clinically proven cognitive aid
Highly bioavailable form

Magtein Magnesium L-Threonate is the only magnesium form clinically proven to support brain magnesium levels, making it a standout for cognitive health.

Its highly bioavailable formula ensures maximum absorption, which is crucial for brain function and sleep support.

While it may take some time to notice effects and the price is a bit higher, the potential cognitive benefits make it worth considering.

Plus, it's backed by rigorous testing and quality sourcing from Double Wood Supplements.

Overall, it’s a smart choice for those seeking targeted mental wellness.

Be sure to also check out the best magnesium patch for more options! Also, here is the price history so you know exactly when to buy!

Price history for Double Wood Magnesium L Threonate on Amazon

Life Extension Neuro-Mag

Life Extension Neuro-Mag Magnesium L-Threonate, Magnesium L-threonate, Memory Health, Quick Thinking, Cognitive Health Support, Vegetarian, Non-GMO, 90 Vegetarian Capsules
Highlights
Enhances cognitive function
Supports short-term memory
Made with quality ingredients

Magnesium L-threonate from Life Extension is a powerful ally for sharp, quick thinking.

It’s specially formulated to support executive function and bolster short-term memory, which makes it ideal for those moments when you need to stay on top of your mental game.

While it's priced on the higher side, the purity and quality ingredients give it an edge.

It may deliver subtle effects, but backed by scientific research, it’s a solid choice for cognitive support.

If cognitive clarity is your goal, this supplement deserves serious consideration.

Be sure to also check out the best magnesium glycinate and threonate together for more options! Also, here is the price history so you know exactly when to buy!

Price history for Life Extension Neuro-Mag on Amazon

Kappa Nutrition Magnesium Magnesium L-Threonate

(120 Capsules), 2,253mg Per Serving, Providing 420mg Elemental Magnesium, L-Threonate, Bisglycinate Chelate, Malate, from Kappa Nutrition.
Highlights
Enhances Memory & Cognition
Supports Sleep Quality
Improves Energy & Muscle Function

Magbrain MAGNESIUM 3 IN 1 L-THREONATE ADVANCED COMPLEX combines a smart blend of magnesium that’s easy on the stomach and highly bioavailable, thanks to Albion’s clinical validation.

It’s great for sharpening memory and mental clarity, with added benefits for better sleep and muscle support.

The Malate component boosts energy production, perfect for those needing a mental and physical boost.

While some users might experience slight tiredness or find it a bit pricey, overall, it checks many boxes for cognitive health, restful sleep, and energy—all wrapped up in a clean, USA-made capsule.

Be sure to also check out the best magnesium for mthfr for more options! Also, here is the price history so you know exactly when to buy!

Price history for Kappa Nutrition Magnesium on Amazon

Dralot Magnesium

Quadruple Magnesium Supplement, 400mg of Chelate Magnesium Glycinate, L-threonate, Citrate & Malate | Max Absorption Complex w/Vitamin D3 & B6, for Sleep Heart Muscles Nerves, Non-GMO, 60 Vegan Caps
Highlights
All-in-One Magnesium Blend
High Absorption & Gentle
Includes Vitamin D3 & B6

The Dralot Magnesium Complex offers a quadruple blend of highly bioavailable forms, making it a one-stop shop for supporting mood, sleep, and muscle health.

Its gentle-on-the-stomach formula with added Vitamin D3 and B6 maximizes absorption, ensuring you get the most out of every capsule.

Plus, crafted with premium ingredients in a vegetarian capsule, it’s suitable for a wide range of users.

While some might want more ingredient transparency, its high customer ratings and comprehensive benefits firmly position it as a versatile, effective magnesium supplement for anyone looking to boost their wellness effortlessly.

Be sure to also check out the best magnesium for eczema for more options! Also, here is the price history so you know exactly when to buy!

Price history for Dralot Magnesium on Amazon

Sports Research Magtein

Sports Research Magtein Magnesium L-Threonate Capsules - Magnesium Supplement for Memory, Focus & Cognition - Magnesium L Threonate Supports Brain Health, Sleep & Mood - 2000mg, 90 Capsules for Adults
Highlights
Highly bioavailable form
Supports cognitive health
Made in the USA

The Magtein patented formula by Sports Research is a game-changer for brain support.

Its highly bioavailable form ensures efficient absorption, helping boost memory, focus, and mood with ease.

Made in the USA and backed by third-party testing, it offers peace of mind and top-quality ingredients.

While some may find the capsules a bit challenging to swallow and the price a tad higher, the potential cognitive benefits make it worth considering for daily mental clarity.

Overall, it's a solid choice for anyone seeking premium magnesium L-threonate support.

Be sure to also check out the best magnesium butter for sleep for more options! Also, here is the price history so you know exactly when to buy!

Price history for Sports Research Magtein on Amazon

Kappa Nutrition Magnesium 120 Capsules Magnesium L-Threonate

(120 Capsules), 2,253mg Per Serving, Providing 420mg Elemental Magnesium, L-Threonate, Bisglycinate Chelate, Malate, from Kappa Nutrition.
Highlights
Enhanced absorption
Supports sleep quality
Boosts energy levels

Magbrain MAGNESIUM 3 IN 1 L-THREONATE ADVANCED COMPLEX truly lives up to its promise.

The fully reacted Magnesium Bisglycinate makes absorption a breeze, so you’re not just taking magnesium; you're actually getting it where it counts — your brain, muscles, and bones.

It’s great for sleep, calming your mind and relaxing muscles naturally, plus it offers an energy boost from Malate to keep you going all day.

While some users report mild stomach discomfort, overall, this supplement delivers a powerful mix of benefits.

With lab-tested purity and a clean formulation, it’s a smart choice for anyone seeking cognitive support and better sleep.

Be sure to also check out the best magnesium cream for leg cramps for more options! Also, here is the price history so you know exactly when to buy!

Price history for Kappa Nutrition Magnesium 120 Capsules on Amazon

Horbäach Magnesium L-Threonate

Horbäach Magtein Magnesium L-Threonate | 2000mg Supplement | 100 Capsules | for Men & Women | Non-GMO and Gluten Free
Highlights
Scientifically supported dosage
High purity ingredients
Enhances sleep quality

Horbaach Magtein offers a scientifically supported dosage of 2,000 mg of Magnesium L-Threonate per serving, making it a top choice for boosting cognitive function and sleep quality.

It's expertly crafted with high purity ingredients, ensuring you're getting a safe, quality supplement.

The product is lab-tested and free from common fillers like gluten, artificial flavors, colors, and preservatives.

While it does come with a higher price tag and limited flavor options, the trusted formulation and clear benefits make it a strong contender.

For those seeking a reliable, high-quality magnesium supplement, this one's a solid pick!

Be sure to also check out the best magnesium b6 supplement for more options! Also, here is the price history so you know exactly when to buy!

Price history for Horbäach Magnesium L-Threonate on Amazon

Nature Made Magnesium L-Threonate

Nature Made Magnesium L-Threonate with Vitamin C & Vitamin D3, Provides 130 mg of Magnesium from 1800 mg Magnesium L Threonate, Cognitive Support Magnesium Supplement, 90 Capsules, 30 Day Supply
Highlights
Supports cognitive function
Made in the USA
No artificial flavors

Nature Made's Magnesium L-Threonate with Vitamin C & D3 is a solid choice for those seeking cognitive support, backed by clinical studies indicating enhanced mental sharpness in 12 weeks.

The gluten-free capsules contain a generous 130 mg of magnesium per dose, promoting muscle relaxation and overall nerve health.

Plus, it’s made right here in the USA with quality ingredients.

While the recommended dose is three capsules daily—some might find that a bit of a commitment—its proven effectiveness and trusted brand reputation make it a worthy contender.

Overall, a reliable, brain-boosting supplement to consider.

Be sure to also check out the best magnesium supplement for rls for more options! Also, here is the price history so you know exactly when to buy!

Price history for Nature Made Magnesium L-Threonate on Amazon

Momentous Magtein Magnesium L-Threonate

Momentous Magtein Magnesium L-Threonate 145mg - Magnesium Threonate Supplement for Cognitive Function & Rest Support, 30 Servings (Package May Vary)
Highlights
Enhances Sleep Quality
Supports Brain Function
Trusted High-Quality Brand

Magtein Magnesium L-Threonate from Momentous truly stands out for its brain-boosting capabilities.

It’s the only form backed by science to cross the blood-brain barrier, helping to sharpen focus, enhance memory, and support overall cognitive health.

Plus, it doubles as a sleep aid — taking just three capsules before bed can help you wind down and enjoy more restful nights.

The trusted brand and research-backed ingredients give us confidence, even if it does come with a higher price tag and limited servings.

For those prioritizing brain health and quality sleep, this supplement packs a punch.

Be sure to also check out the best magnesium supplement for runners for more options! Also, here is the price history so you know exactly when to buy!

Price history for Momentous Magtein on Amazon

NOW Supplements

NOW Foods Supplements Magtein, Magnesium L-Threonate, Cognitive Support*, 180 Veg Capsules
Highlights
Crosses blood-brain barrier
Supports brain health
GMP quality assured

Magtein’s patented form of magnesium easily crosses the blood-brain barrier, ensuring your brain gets what it needs without fuss.

It’s especially great for supporting brain health, learning, and memory, while also promoting a relaxed mood.

While the effects can be subtle and may take a few weeks to fully kick in, the quality is top-notch — GMP certified and proudly made in the USA by a family-owned company.

If you're after a scientifically backed, reliable supplement to boost your cognitive wellness, this could be a smart choice.

Be sure to also check out the best lithium orotate for more options! Also, here is the price history so you know exactly when to buy!

Price history for NOW Supplements on Amazon

Jarrow Formulas MagMind

Jarrow Formulas Magnesium L-Threonate, MagMind Magtein Brain Supplements for Memory Support, 90 Veggie Capsules, Up to a 30 Day Supply
Highlights
Supports brain health
Clinically studied Magtein
Vegan and allergy friendly

MagMind by Jarrow Formulas delivers a potent 2g of Magtein (Magnesium L-Threonate) per serving, proven to boost cognition, alertness, and overall brain health.

Its clinically studied form crosses the blood-brain barrier with ease, ensuring maximum absorption where it counts.

Plus, it’s vegan, non-GMO, and allergy-friendly, making it a versatile choice for many lifestyles.

While it might be on the pricier side and requires regular use to see optimal benefits, the science-backed formulation makes it a smart pick for those serious about their mental performance.

Be sure to also check out the best magnesium spray for muscle pain for more options! Also, here is the price history so you know exactly when to buy!

Price history for Jarrow Formulas MagMind on Amazon

Duwhot Magnesium Threonate Gummies Magnesium L-Threonate

Magnesium Threonate Gummies 1000mg, Magnesium Supplements for Kids & Adults, Sleep, Muscle & Nervous System Support, Vegan, 60 Raspberry Gummies
Highlights
High absorption rate
Tasty raspberry flavor
Supports sleep & muscles

These gummies deliver high absorption with a potent 500mg of magnesium threonate per gummy, making it a great choice for brain and muscle support.

The tasty raspberry flavor makes supplementing a treat, while the soft pectin base ensures they are gentle on the stomach.

Users report smoother sleep and fewer muscle cramps, which aligns with magnesium’s well-known benefits.

Of course, the flavor might take some getting used to, and you're limited to just two gummies daily.

Still, with high-quality, vegan, and gluten-free ingredients, these gummies are a convenient and effective way to support your health.

Be sure to also check out the best brand for magnesium l threonate for more options! Also, here is the price history so you know exactly when to buy!

Price history for Duwhot Magnesium Threonate Gummies on Amazon

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