Momentous Magtein Magnesium L-Threonate
- Magnesium
- Capsule
- Magnesium
- 30
This magnesium L-threonate capsule earns its premium mainly through NSF Sport certification and the specific chelate form, not general everyday value.
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How it ranks among the 108 magnesium we track
4.6★ across 717 Amazon ratings, Bayesian-smoothed toward the category average.
717 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
6,000+ 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
Momentous' Magtein capsule delivers magnesium L-threonate, a specific chelated form of magnesium, at 145 mg per serving across 30 servings. The product is NSF Certified for Sport and comes in an unflavored capsule.
Magnesium L-threonate (branded Magtein) is marketed differently than common oxide or citrate forms, positioned here toward brain and rest support rather than general mineral maintenance. NSF Certified for Sport matters specifically to athletes who are drug tested, since it screens for banned substances.
- 145 mg magnesium L-threonate per serving
- 30 servings per container
- NSF Certified for Sport
- Unflavored capsule
Who it's for
Fits athletes under NSF testing requirements and anyone specifically seeking the L-threonate form of magnesium rather than a cheaper generic. Not the choice if you just want an everyday, budget magnesium for muscle cramps or general mineral intake.
Strengths and trade-offs
Drawn from this product's published specifications.
- NSF Certified for Sport, batch tested for banned substances
- Uses the L-threonate chelate, not a generic magnesium salt
- Unflavored capsule, easy to stack with other supplements
- 30 servings is only about a month's supply
- L-threonate typically costs more than standard magnesium forms
- No breakdown of elemental versus total compound weight
Performance notes
Momentous lists 145 mg of magnesium L-threonate per serving, unflavored, with 30 servings per container, roughly a month at one serving daily. NSF Certified for Sport means each batch is tested for banned substances, a detail relevant mainly to competing athletes.
Specifications
| Brand | Momentous |
|---|---|
| Model | 7015 |
| Form | Capsule |
| Supplement Type | Magnesium |
| Count | 30 |
| Flavor | Unflavored |
How it compares
This product against the closest alternatives we track in magnesium.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Momentous Magtein Magnesium L-ThreonateThis product | 4.6 / 5 | 717 | 4.4 / 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 Momentous 7015
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What form of magnesium is in Momentous Magtein?
It's magnesium L-threonate, the branded Magtein chelate, at 145 mg per serving.
Is Momentous Magtein NSF certified?
Yes, it's listed as NSF Certified for Sport.
How many servings does the Momentous Magtein model 7015 provide?
30 servings per container.