Magnesium L-Threonate featuring Magtein®
Unlock your brain’s full potential with a scientific breakthrough in mineral supplementation. Double Wood’s Magnesium L-Threonate features Magtein®, a patented, highly intelligent form of magnesium that is clinically studied for its unique ability to cross the blood-brain barrier. This is the ultimate magnesium for individuals serious about supporting their cognitive health, memory, and sleep quality.*
The Magtein® Breakthrough: A Smarter Magnesium
While standard magnesium supplements are great for the body, they are not readily absorbed by the brain. Magtein® was developed by scientists at MIT to solve this problem. It is the only form of magnesium that has been clinically shown to effectively support magnesium levels in the brain. Higher brain magnesium levels are associated with better synaptic density and plasticity, which are crucial for learning and memory.*
Support for Cognition, Memory, and Restful Sleep*
By providing a bioavailable source of magnesium directly to the brain, Magtein® offers a wide range of benefits for your mental performance and nightly restoration.
- Supports Cognitive Health: Aids in maintaining overall brain health and supports healthy cognitive function as you age.*
- Promotes Memory & Learning: Supports synaptic plasticity, the biological basis for how your brain forms new memories and learns.*
- Aids in Restful Sleep: Magnesium is essential for calming the nervous system. Magtein® supports deep, restorative sleep, helping you to wake up feeling refreshed and mentally sharp.*
Clinically Studied, Third-Party Tested
✓ Patented & Clinically Studied Magtein®: We use the official, patented Magtein® ingredient at the dose used in human clinical studies, so you can be confident in its efficacy.
✓ Third-Party Tested for Purity: Every batch is independently tested by a third-party lab to ensure purity, potency, and safety. Certificates of Analysis are available for every batch.
✓ Made in the USA: Proudly manufactured and tested in the USA in a GMP-certified facility.
✓ Expert Endorsed: “Magnesium L-Threonate’s ability to elevate brain magnesium is a significant advantage for anyone looking to support cognitive function and sleep. Magtein® is the specific, patented form with the clinical research to back it.” – Dr. Andrew Huberman, PhD, Neuroscientist (Archetype).
✓ Learn More About Brain Health: Understand the role of this vital mineral. Read a scientific review on the role of Magnesium in brain health from the National Library of Medicine.
How to Use for Best Results
The recommended protocol for Magtein® is a split dose to support brain health throughout the day and promote sleep at night. As a dietary supplement, adults take four (4) capsules daily: take two (2) capsules in the morning and two (2) capsules approximately two hours before bedtime.
Important Safety Information
This supplement is intended for healthy adults. Please consult your physician before use if you are pregnant, nursing, have a medical condition (especially kidney disease or low blood pressure), or are taking any medications. Do not exceed the recommended dose.
Frequently Asked Questions (FAQ)
- What makes Magtein® different from other magnesium like Glycinate or Citrate?
- While forms like Glycinate and Citrate are excellent for the body, Magtein® (Magnesium L-Threonate) is specifically chelated with L-Threonic acid, which allows it to be transported across the blood-brain barrier. This makes it the superior choice specifically for supporting brain and cognitive health.
- Is 2,000mg a high dose of magnesium?
- No, the 2,000mg refers to the total weight of the Magtein® compound. The actual amount of elemental magnesium in that dose is 144mg, which is a safe and effective daily amount. This is a key part of our commitment to transparency.
- Why is the dose split between morning and evening?
- The split dosing protocol is based on clinical studies. Taking it in the morning supports cognitive function and focus during the day, while the evening dose supports the relaxation and sleep-related benefits of magnesium.
*Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
















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