Supplement Facts

Serving Size: 2 capsules

Servings Per Container: 30

Amount Per Serving %DV

Magnesium

(as Magnesium L-Threonate) 144 mg 34%

Magtein® (Magnesium L-Threonate)

2000 mg *

Other Ingredients: Vegetable Capsule

Product Details

Magtein® is a patented form of magnesium specially designed to cross the blood-brain barrier and elevate magnesium levels in the brain. This unique chelate supports learning, memory, and cognitive function, setting it apart from traditional magnesium supplements that primarily target muscle and bone health.*

Delivers Research Base dose of 2,000 mg Magtein® (magnesium L-threonate), a patented form developed by MIT-affiliated researchers.

2,000 mg Magtein® per serving
Patented Magnesium L-Threonate form clinically proven to elevate brain magnesium levels*
High bioavailability with demonstrated ability to increase synaptic density and neural plasticity*
Non-GMO vegan, and gluten-free
Clean Label: no unnecessary fillers or additives such as stearates
3rd Party Tested, Manufactured under GMP standards with consistent purity and potency

How it Works

Our special formula features patented Magtein® a form of magnesium L-threonate that delivers the potent “brain boost” you want to help your brain function optimally. Compared to other forms, magnesium L-threonate has “VIP access” to nourish the cells and tissues that support cognition, including thinking, attention and working memory.

NAOMI Magnesium Threonate supplies 2,000 mg of Magtein®, a patented magnesium L-threonate developed by a world-renowned doctor and researcher at Massachusetts Institute of Technology (MIT). In a pre-clinical study, adult participants aged 50 to 70 who supplemented daily with Magtein® for 90 days performed significantly higher in four cognitive areas compared to the placebo group.*

Another 30-day study with participants aged 18 to 65 revealed that older adults benefit the most. While all participants who took this patented magnesium showed significant improvements across five cognitive sub-categories, older participants experienced the greatest boosts to working memory and cognition compared to younger participants.*

An essential mineral involved in over 600 cellular reactions, magnesium is vital for supporting optimal brain and nerve function, heart and muscle health, and helping the mind and body relax.*** It also supports strong bones, a balanced mood and a healthy cardiovascular system.*

Our bioavailable magnesium threonate is GI-friendly and easily digested, so you don’t have to worry about digestive upset or a laxative effect. And best of all, it delivers benefits in fewer capsules—2 easy-to-swallow veggie caps daily are all you need, compared to 3-4 capsules a day with many other brands.

4.7

Rated 4.7 out of 5 stars

73 Reviews

Magtein® Magnesium Threonate

Highly absorbable form supports cognition, working memory and focus

Magtein® Magnesium Threonate

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Supplement Facts

Serving Size: 2 capsules

Servings Per Container: 30

Amount Per Serving %DV

Magnesium

(as Magnesium L-Threonate) 144 mg 34%

Magtein® (Magnesium L-Threonate)

2000 mg *

Other Ingredients: Vegetable Capsule

Product Details

Delivers Research Base dose of 2,000 mg Magtein® (magnesium L-threonate), a patented form developed by MIT-affiliated researchers.

2,000 mg Magtein® per serving
Patented Magnesium L-Threonate form clinically proven to elevate brain magnesium levels*
High bioavailability with demonstrated ability to increase synaptic density and neural plasticity*
Non-GMO vegan, and gluten-free
Clean Label: no unnecessary fillers or additives such as stearates
3rd Party Tested, Manufactured under GMP standards with consistent purity and potency

How it Works

4.3

Rated 4.3 out of 5 stars

14 Reviews

BrainSpan™

WHY PAIR: DHA + Magnesium L-Threonate together support healthy cognitive function and mental clarity.*

From $49.99

3.9

Rated 3.9 out of 5 stars

221 Reviews

SleepAdapt™

WHY PAIR: Magnesium L-Threonate supports relaxation and complements botanical sleep wellness support.*

From $29.99

Key Health Benefits

Supports memory, attention & mental clarity†

Helps maintain healthy synaptic function†

Promotes relaxation without grogginess†

Key Ingredients

Black bowl filled with white granulated sugar on a gray surface

Magtein® (Magnesium L-Threonate)

Patented, uniquely brain-permeable magnesium shown to support muscle, nerve and cognitive performance

Frequently Asked Questions

Send our team an email & we’ll get back to you as soon as possible.

GET IN TOUCH

How is Magnesium Threonate different from other magnesium products?

This formula features the form of magnesium that can cross the blood-brain barrier and has been clinically shown to support cognitive performance, including working memory, executive function and learning capacity.

High absorption and GI-friendly, our formula is easily digested for optimal use and distribution to your brain without upsetting your stomach.

Is magnesium L-threonate better than other forms?

This form of magnesium is different than others in two powerful ways:

It offers one of the highest levels of bioavailability and absorption, and
It crosses the blood-brain barrier, making it the preferred form for protecting your brain from age-related cognitive decline.

Elemental magnesium is combined with threonic acid, an amino acid and natural by-product of metabolizing vitamin C that enhances mineral absorption. Commonly used but less effective magnesium supplements pair the mineral with oxides, sulfates and carbonates—substances that are hard to absorb, may upset your stomach and have a laxative effect.

How long before I notice results taking Magnesium Threonate?

One of the advantages of magnesium L-threonate is that its naturally-high absorption rate speeds up accumulation in your system, so it takes less time to take effect. Studies on this brain-boosting form of magnesium have revealed measurable improvements in as few as 30 days. If you have a magnesium deficiency, it may take a little longer to replenish and restore the minimum levels your body needs to support the hundreds of enzymatic processes that require magnesium.

Trusted by over 600,000+ Customers

Supplements you trust, results you feel.

4.7

Rated 4.7 out of 5 stars

Based on 73 reviews

Total 5 star reviews: 61 Total 4 star reviews: 6 Total 3 star reviews: 4 Total 2 star reviews: 0 Total 1 star reviews: 2

92%would recommend these products

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MM
Mary M.
Verified Buyer
I recommend this product
Age 65+
Gender Female
Wellness Concern Sleep, Aging
Rated 5 out of 5 stars
2 months ago
A total body relaxer
Two of these before bedtime relaxes my whole body. This type of magnesium is also very healthy for the brain. I am happy to see Naomi offering it for a reasonable price, especially if you get the subscription of 3 at a time.
Was this helpful?
TK
Tony K.
Verified Buyer
I recommend this product
Age 55-64
Gender Male
Wellness Concern Mood, Sleep, Energy, Focus
Rated 5 out of 5 stars
1 week ago
Magtein Magnesium Threonate
great product!
Was this helpful?
SD
shelly d.
Verified Buyer
I recommend this product
Age 65+
Gender Female
Wellness Concern Metabolic Health
Rated 5 out of 5 stars
2 weeks ago
Great stuff!
It’s good!
Was this helpful?
JN
Joanna N.
Verified Buyer
I recommend this product
Age 25-34
Gender Female
Wellness Concern Sleep, Energy, Focus, Beauty, Hormonal Balance
Rated 5 out of 5 stars
3 weeks ago
Love it!
We are really enjoying this magnesium! My husband and I both feel like we have been sleeping better since starting this magnesium. My favorite and the reason I chose Naomi as our magnesium threonate source is because there are no additives or fillers in this capsule! Please keep it this way!
Was this helpful?
N
NAOMI
3 weeks ago
That is wonderful! 🥰❤️
MS
MIchele S.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
1 month ago
Love my Magnesium
I’ve been taking Magtein Magnesium Threonate for about a year now and I believe it has helped promote a good nights sleep! I have consistently been sleeping 8 hours every night - which then, of course, encourages a productive day. Every day!
Was this helpful?

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Supplement Facts

Magnesium

Magtein® (Magnesium L-Threonate)

Product Details

How it Works

Magtein® Magnesium Threonate

Magtein® Magnesium Threonate

Supplement Facts

Magnesium

Magtein® (Magnesium L-Threonate)

Product Details

How it Works

BrainSpan™

Choose your option

SleepAdapt™

Choose your option

Key Health Benefits

Supports memory, attention & mental clarity†

Helps maintain healthy synaptic function†

Promotes relaxation without grogginess†

Key Ingredients

Magtein® (Magnesium L-Threonate)

Frequently Asked Questions

How is Magnesium Threonate different from other magnesium products?

Is magnesium L-threonate better than other forms?

How long before I notice results taking Magnesium Threonate?

Trusted by over 600,000+ Customers

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