Magtein - Magnesium L-Threonate Supplement, Memory, Focus, Sleep & Brain Health Formula…
- Magnesium
- Capsule
- Magnesium
- 60
A magnesium L-threonate capsule aimed squarely at cognitive support, useful if that specific form and use case is what you are after rather than general magnesium supplementation.
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How it ranks among the 108 magnesium we track
4.6★ across 2,000 Amazon ratings, Bayesian-smoothed toward the category average.
2,000 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
4,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 108 magnesium we track - how the scorecard works · full magnesium data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Magtein is a magnesium L-threonate supplement positioned around memory, focus, sleep and brain health, packaged as 60 veggie capsules. It is kosher and vegetarian, aimed at adults wanting a magnesium form associated with cognitive support.
Magnesium L-threonate is a specific form of magnesium developed for its ability to cross into the brain more readily than common forms like magnesium oxide or citrate, which is why it is marketed here around memory and focus rather than general mineral supplementation. The title notes it is clinically researched, though the listing data does not specify which studies, so treat that as a brand claim to verify rather than an established fact.
- Magnesium L-threonate formula
- Kosher and vegetarian capsules
- 60 count bottle
- Positioned for memory, focus and sleep
Who it's for
Fits adults specifically looking for a magnesium form tied to cognitive and sleep support rather than a general-purpose magnesium supplement. Not the right pick for someone who just wants an inexpensive, high-dose magnesium for muscle or digestive purposes.
Strengths and trade-offs
Drawn from this product's published specifications.
- Magnesium L-threonate, a form associated with cognitive support
- Kosher and vegetarian capsules
- Marketed for memory, focus and sleep
- Likely priced higher than standard magnesium forms
- No specific study details included in the listing data
Performance notes
Magtein uses the L-threonate form of magnesium, which the brand markets around brain health, memory and sleep rather than the broader uses associated with magnesium citrate or oxide. The 60 veggie capsule count supports a daily serving routine for about two months.
Specifications
| Brand | Magtein |
|---|---|
| Form | Capsule |
| Supplement Type | Magnesium |
| Count | 60 |
| Benefits | Memory Health |
| Flavor | Unflavored |
| Diet | Kosher, Vegetarian |
How it compares
This product against the closest alternatives we track in magnesium.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Magtein - Magnesium L-Threonate Supplement, Memory, Focus, Sleep & Brain Health Formula…This product | 4.6 / 5 | 2,000 | 4.5 / 5 |
| Nature Made Magnesium Oxide 250 mgNATURE | 4.7 / 5 | 34,500 | 4.6 / 5 |
| NaturalSlim MagicMag Magnesium Citrate Powder for StressNaturalSlim | 4.7 / 5 | 26,700 | 4.6 / 5 |
| NOW Supplements, Magnesium Citrate, Enzyme Function*, Nervous System Support*, 120 Veg…Now | 4.7 / 5 | 25,200 | 4.6 / 5 |
| Life Extension Magnesium CapsLife | 4.7 / 5 | 16,700 | 4.6 / 5 |
Similar magnesium from other brands
Questions about the Magtein magnesium
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What form of magnesium does Magtein use?
Magnesium L-threonate, a form marketed for its brain health properties.
Is this supplement vegetarian?
Yes, it is listed as kosher and vegetarian.
How many capsules are in a bottle?
60 veggie capsules.