Better Magnesium.
Better Brain.

Magtein® is the unique, patented form of magnesium L-threonate, shown in studies to support brain health and cognitive vitality, backed by transparent science, human clinical research, and global recognition for scientific innovation*

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Find us in 500+ SKUs
100K+ 5-star reviews on Amazon
10+ years of research
50M+ bottles sold
Sold in 50+ countries

Magtein® Benefits

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Brain Health

Supports cognitive vitality*

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Sleep

Supports restful sleep*

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Energy

Supports sustained energy*

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Focus

Supports mental clarity*

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Mood

Supports emotional balance*

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Memory

Supports recall*

Magtein® vs. Other Magnesiums

Not all forms of magnesium work the same way.

Feature
Magtein® (L-Threonate)
Other Magnesiums(e.g., Glycinate, Citrate, Oxide)
Brain-targeted delivery
High
Shown in research to reach the brain — brain-health mechanism tied to its L-threonate component.*
Limited
Not all forms work the same way. Many may not effectively reach the brain.*
Cognitive support
Backed
Supports working memory, reaction time, and cognitive performance.
Indirect
May support overall well-being, but cognitive benefits are less direct and less studied.*
Published research
40+ studies
40+ peer-reviewed publications, 5 human clinical trials. Most published human research of any magnesium form for brain health.*
Limited
Often supported by general magnesium research, not form-specific brain studies.*
Form quality
Premium
A uniquely studied form — well-tolerated with fewer GI side effects compared to high-dose forms.*
Varies
Many products boost “elemental magnesium” by adding poorly absorbed magnesium oxide (MgO).*

Our Journey

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More than 15 years of pioneering research have made Magtein® synonymous with brain health.

Research scientist looking through a microscope
2010Discovered

Neuroscientists led by Dr. Guosong Liu publish landmark research in the journal Neuron, identifying magnesium L-threonate as a novel compound shown to raise brain magnesium levels and enhance synaptic plasticity and memory in animal models.¹

Approval stamp on regulatory paperwork
2011GRAS Self-Affirmed

Magtein is self-affirmed as GRAS (Generally Recognized As Safe) under FDA guidelines.

Clinician discussing research with an adult
2016First Human
Clinical Trials

Clinical research in older adults with cognitive complaints shows measurable improvement in processing speed, establishing Magtein's first published human evidence base.²

Illustration of connected neurons
2022Research Expands

A new peer-reviewed human clinical study, published in Nutrients, shows a Magtein-based formula improves memory in healthy adults, with the largest gains seen in older participants.³

Adult sleeping peacefully
2024Sleep Quality
Trial Published

A randomized, controlled trial (Hausenblas et al., Sleep Medicine X) finds that Magtein improves sleep quality and daytime functioning in adults with self-reported sleep problems, including gains in deep sleep, REM sleep, and next-day mood and alertness.⁴

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2026Cognitive Performance
Trial Published

Approved for medical and consumer wellness use across key European and Asian health networks.

References: 1. Slutsky I, et al. 2010., 2. Liu G, et al. 2016., 3. Wang Y. 2022., 4. Hausenblas HA, et al. 2024., 5. Lopresti AL, Smith SJ. 2026.

Awards and Recognition

Cognitive and Emotional Health Ingredient of the Year

Nutrition Research Project of the Year

Ingredient of the Year, Mind & Mood

Ingredient of the
Year, Healthspan

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Ingredient of the
Year, Healthspan

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Ingredient of the
Year, Mind & Mood

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Our Partners

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Where to Purchase

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