Mag-Ox Magnesium Supplement
- Magnesium
- Better rated than 62%
- More reviewed than 75%
A straightforward, high-dose magnesium oxide tablet from a brand built specifically around this compound, reasonable for anyone needing concentrated magnesium.
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How it ranks among the 108 magnesium we track
4.7★ across 9,800 Amazon ratings, Bayesian-smoothed toward the category average.
9,800 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: limited - incomplete product information.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Mag-Ox delivers 483 mg of pharmaceutical grade magnesium oxide per tablet, described as the most concentrated form of magnesium, in a bottle of 120 tablets.
Magnesium oxide is valued in supplements for its high elemental magnesium content per milligram compared to other magnesium forms, which is the basis for the concentrated claim here. No additional flavor or dietary attributes were provided in this listing beyond the tablet form and count.
- 483 mg magnesium oxide per tablet
- Pharmaceutical grade
- Concentrated form of magnesium
- 120 tablets per bottle
Who it's for
Suited to adults wanting a high-dose, no-frills magnesium tablet. Not ideal for anyone who has been advised to use a different magnesium form for absorption or digestive reasons.
Strengths and trade-offs
Drawn from this product's published specifications.
- High 483 mg dose per tablet
- Pharmaceutical grade magnesium oxide
- 120 tablets per bottle
- No flavor, dietary or allergen details listed for this product
Performance notes
Magnesium oxide packs more elemental magnesium by weight than many alternative magnesium compounds, which is why a single 483 mg tablet counts as a concentrated dose. The tablet format here is described as pharmaceutical grade.
Specifications
| Brand | Mag-Ox |
|---|---|
| Model | 760569494121 |
How it compares
This product against the closest alternatives we track in magnesium.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Mag-Ox Magnesium SupplementThis product | 4.7 / 5 | 9,800 | 2.7 / 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 Mag-Ox 760569494121
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much magnesium is in each Mag-Ox tablet?
483 mg of magnesium oxide per tablet.
How many tablets are in a bottle of Mag-Ox?
120 tablets.
What form of magnesium does Mag-Ox use?
Magnesium oxide, described as pharmaceutical grade and the most concentrated form of magnesium.