Pure Brain-Targeted Magnesium with No Additives

L-Threonate Magnesium: 120 grams Pure Magtein®

Enhance brain function: Magtein® L-Threonate, a proven L Threonate magnesium supplement. Boost memory, attention, & learning focus!

  • Proven to Increase Synaptic Density Aiding Memory & Attention
  • Proven to Cross the Blood-Brain Barrier Helping Learning Focus
  • 3rd-Party Tested for Purity, Potency & Safety
  • 60 Vegan, Non-GMO, No-Filler Servings

Free Shipping on Orders Over $100

Improve your brain function with Magtein® L-Threonate, proven to increase synaptic density which helps memory, attention and learning focus.  Methyl-Life® brings you Magtein® in its purest form, without a single additive, an odorless and tasteless powdered form of magnesium.

Supplement Facts
Serving Size: 2 grams (approx. 1/2 tsp)
Servings Per Container: 60 servings per container
Amount Per Serving % Daily Value
Elemental Magnesium 144 mg
(from 2,000 mg of Magnesium L-Threonate as Magtein®)
(Total) 36%
† Daily Value not established

Other Ingredients

None.

Allergen & Safety Information

  • Does not contain: wheat, gluten, soy, dairy, tree nuts, animal products, caffeine, or GMOs
  • No artificial ingredients or colorings

Suggested Use

Take 1/2 rounded teaspoon stirred into liquid, or as directed by your healthcare practitioner.

How much should you take?

Every individual’s needs are different. Always consult your healthcare provider to determine the right dose for your specific needs.

Doctor-guided support

Visit our Dosage Information and Methylation Protocol pages to learn what some practitioners recommend, including step-by-step guidance for individuals with MTHFR gene variants.

Additional considerations

This supplement is designed to be taken daily or as recommended by your healthcare practitioner.

Improve your brain function with Magtein® L-Threonate, proven to increase synaptic density which helps memory, attention and learning focus.  Methyl-Life® brings you Magtein® in its purest form, without a single additive, an odorless and tasteless powdered form of magnesium.  We’ve hand-picked this innovative and highly bioavailable version of magnesium designed to enhance brain function in four different ways:  1) attention  2) working memory (executive function)  3) long term memory and  4) short term (or episodic) memory.  Magtein® crosses the blood brain barrier and has shown stunning results in human as well as animal studies.  It is protected by 8 US & international patents.

Science Based FactMagnesium is an essential mineral and a cofactor for the COMT (Catechol-O-methyltransferase) enzyme, which is required to transfer a methyl group from SAMe to metabolize dopamine, norepinephrine, and epinephrine. Essential for healthy mood, cardiovascular function, and nerve function.

Magtein® recently demonstrated remarkable results in a human clinical study on dementia & Alzheimer’s published in the Journal of Alzheimer’s Disease.   It showed a meaningful increase of memory-related functions in the brain which represented a 9 year age improvement when subjects supplemented with Magtein®⁵.  The study revealed that less synaptic density actually means more memory loss, which is why the mechanism of action for Magtein® seems to be so critical.  Magtein® essentially makes more synapses for the brain to use.  Synaptic density improves recall functions in the brain.  The findings concluded that as long as the nutrient was present, cognition got better, however, when Magtein® was removed from the participants’ daily regimens, the synaptic density was reduced and the memory impairments returned.

The main side effects were a substantial reduction in stress and anxiety.  In an animal model, it was noteworthy to learn that Magtein® enhanced the control of fear-stress memory – the brain regions known to control stress and fear actually improved with the nutrient (prefrontal cortex/hippocampus)³,⁴. In a rat study Magtein® was also shown to increase the learning ability of young rats in addition to improving their working, short and long term memories¹,².

Methyl-Life® is very excited to bring you this revolutionary new magnesium for your own cognitive enrichment!

HOW WE HAVE HELPED OUR CUSTOMERS

Len

Verified Buyer
06/22/2024
Simply Amazing!

I am so impressed by the science and effectiveness of three products I've been taking. The chewable multivitamin has a good taste which makes it so convenient to take. I've also taken both magnesium supplements and while they both improve my sleep, feel the difference with the Magtein. It's as if my brain just feels relaxed yet focused at the same time. I know that's not an apt description but it's how I actually feel. So grateful for all the dedication and formulas.

HOW WE HAVE HELPED OUR CUSTOMERS

June

Verified Buyer
08/15/2025
-

Helps my mind be more clear

HOW WE HAVE HELPED OUR CUSTOMERS

Mary Ann S.

Verified Buyer
05/09/2023
I like it!

I like this magnesium product better than the sucrosomial version. I find that this one taken regularly keeps the leg cramps away while the other seems to overpower me and cause leg cramping. Measuring out the correct amount is a bit problematic but it's fixable with a line drawn on the scoop. I mix it with a prebiotic powder before adding it to the liquid choice of the day. I've even sprinkled it on cereal. I've been using it for a couple years and I find I don't like to be without it in my daily regimen.

HOW WE HAVE HELPED OUR CUSTOMERS

Rebecca A.

Verified Buyer
04/08/2023
Great product!

This really seems to be helping to lessen the brain fog I have been dealing with from Long Covid. I have felt more clear minded over time. It was not an immediate improvement but a gradual one. So my recommendation is for people to really give this time to work.

HOW WE HAVE HELPED OUR CUSTOMERS

Lawrence B.

Verified Buyer
28/11/2021
Excellent

Excellent

L-Threonate Magnesium: 120 grams Pure Magtein®
$59

Traceable Ingredients You Can Trust

Every ingredient is sourced for purity, backed by clinical evidence, and rigorously tested for safety and bioavailability. Because in supplements, not all ingredients are created equal — and your body deserves only the most effective forms.

Methyl-Life® L-Threonate Magnesium: 120 grams Pure Magtein® contains no unnecessary excipients, synthetic colors, artificial preservatives, or common allergens. It is 100% free from gluten, soy, dairy, GMOs, animal-derived ingredients, and the EU’s top 14 allergens.

Every batch is third-party tested for purity, potency, and safety, manufactured in NSF-certified, cGMP-compliant facilities, and rigorously evaluated to ensure you’re getting clean, clinical-grade nutrients — nothing more, nothing less.

EU’s top 14 allergens

  • Cereals containing gluten - wheat (such as spelt and khorasan wheat), rye, barley, oats. Note: The cereal name, e.g., 'wheat', must be declared and highlighted, not 'gluten'.
  • Crustaceans, e.g., crabs, prawns, lobsters
  • Eggs
  • Fish
  • Peanuts
  • Soybeans
  • Milk
  • Nuts (almonds, hazelnuts, walnuts, cashews, pecan nuts, brazil nuts, pistachio nuts, macadamia/Queensland nut). Note: The name of the nut, e.g., 'almond', must be declared and highlighted, not 'nuts'.
  • Celery
  • Mustard
  • Sesame seeds
  • Sulphur dioxide and sulphites (at concentrations of more than 10 mg/kg or 10 mg/L in terms of total sulphur dioxide) – used as a preservative
  • Lupin 
  • Molluscs, e.g., mussels, oysters, squid, snails

Frequently Asked Question

Most studies have found that 2 grams per day is effective for improving brain health by increasing memory recall, attention and learning functions. And instead of having to swallow 3 capsules today, we’ve produced a form of the nutrient that you can easily stir into a liquid (and that has absolutely no additives whatsoever, it’s just pure, 100% Magtein® only).
Check out the additional studies that have been published and are demonstrating this unique mineral’s profound effectiveness on the brain.

1. Slutsky, L., et al., Neuron. 2010 Jan 28;65(2):165-77. One of the three most downloaded Neuron articles in 2010.

2. Li, W., et al., J Neurosci, 2013. 33(19): p8423-41.

3. Abumaria N., et al., Journal of Neuroscience 2011 Oct, 31(42:14871-14881).

4. G.A., et al., Pharmacol Biochem Behav. 2013 Mar 6;106C:16-26.
Each purchase of Magtein® L-Threonate Magnesium provides a 2-month supply, containing 120 grams of powder for convenient and sustained usage.
Magtein® is specifically formulated to cross the blood-brain barrier, delivering magnesium directly to the brain where it can exert its cognitive benefits. Supported by eight US and international patents, Magtein® has demonstrated remarkable results in both human and animal studies, making it a promising supplement for enhancing brain function.
Magnesium plays a vital role in numerous bodily functions, including mood regulation, cardiovascular health, and nerve function. As a cofactor for the COMT enzyme, magnesium is indispensable for the proper metabolism of key neurotransmitters, contributing to overall well-being.
Check out the published study in the Journal of Alzheimer’s Disease [Guosong, L., et al., Journal of Alzheimer’s Disease 49 (2016) 971–990]. There’s great science showing how this nutrient affected cognition and memory function equivalent to a 9 year age improvement.
Magtein® L-Threonate Magnesium is a form of magnesium specifically designed to support cognitive function and promote clearer thinking.
Magtein® L-Threonate Magnesium has been scientifically proven to increase synaptic density, thereby enhancing memory, attention, and learning focus. Methyl-Life® offers Magtein® in its purest form, without any additives, providing an odorless and tasteless powdered magnesium supplement designed to improve brain function in various aspects, including attention, working memory, long-term memory, and short-term memory.
Magnesium is an essential mineral that serves as a cofactor for the COMT (Catechol-O-methyltransferase) enzyme, facilitating the transfer of methyl groups from SAMe to metabolize neurotransmitters like dopamine, norepinephrine, and epinephrine. This process is crucial for maintaining a healthy mood, cardiovascular function, and nerve function.
It's recommended to take 1/2 rounded teaspoon of Magtein® L-Threonate Magnesium stirred into liquid, or as advised by your healthcare provider for optimal dosage and usage instructions.

Customer Reviews

Based on 18 reviews
72%
(13)
0%
(0)
6%
(1)
6%
(1)
17%
(3)
A
Anonymous

Helps my mind be more clear

P
Peter Bray
No review title

No review content

L
Len
"Simply Amazing!"

"I am so impressed by the science and effectiveness of three products I've been taking. The chewable multivitamin has a good taste which makes it so convenient to take. I've also taken both magnesium supplements and while they both improve my sleep,
feel the difference with the Magtein. It's as if my brain just feels relaxed yet focused at the same time. I know that's not an apt description but it's how I actually feel. So grateful for all the dedication and formulas."

Thank you so much for sharing your experience with us! We're thrilled to hear how impressed you are with our products. It's wonderful to know that our chewable multivitamin is not only convenient but also tasty for you. And we're delighted that our magnesium supplements, especially Magtein, have made such a positive impact on your sleep and mental clarity. Your description of feeling relaxed yet focused is fantastic feedback—it really helps capture the unique benefits of our formulas.
Best of health to you!

R
REATHEA MALONE
No review title

No review content

L
Larry Ashley
"easy to take"

"I like it, but too soon to notice a difference"

Hi Larry, Please let us know how we can support you to turn this 3 star review into a 5 star review. We would love to hear back from you once you have had more time to use the product. Please feel free to check out the research on this product page as well - there are some great scientific findings: https://methyl-life.com/collections/superior-magnesium/products/magtein-l-threonate-brain-magnesium-powder-120-grams-60-servings

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