Best Magnesium Without Oxide
Magnesium supplements from the NIH Dietary Supplement Label Database whose labels list no magnesium oxide, ranked by how completely the label discloses what is in the product.
Why People Avoid Magnesium Oxide
Magnesium oxide is 60% magnesium by weight, so it packs a large labeled dose into a small tablet. It is also poorly soluble at intestinal pH: Firoz and Graber measured fractional absorption of about 4%, against substantially higher absorption for chloride, lactate, and aspartate. Most of an oxide dose stays in the gut, where it acts as an osmotic laxative.
That makes oxide a reasonable laxative and a poor choice for raising magnesium status. It is also the form most often hidden in blends: "buffered" glycinate products commonly add oxide to raise the milligrams per capsule, and the Supplement Facts panel is the only place that reveals it.
Results
976 of 1,893 on-market magnesium supplement labels in the index name their magnesium form and list no magnesium oxide.
Ranked by label detail (stated amounts, named forms, a complete other-ingredients list), then by fewest other ingredients. The ranking reflects what the label discloses, not product testing, purity, or efficacy.
| Product Name | Ingredients | Form |
|---|---|---|
| Magnesium Bisglycinate Chelate Healthy Origins · 2 Gram(s) | Magnesium 200 mg1 other ingredient | bisglycinate |
| Magnesium Malate 500 mg Seeking Health · 1 Scoop(s) | Magnesium 500 mg1 other ingredient | malate |
| Pure Albion Magnesium 400 mg Emerald Labs · 4 Capsule(s) | Magnesium 400 mg1 other ingredient | bisglycinate |
| Chelated Magnesium Suzy Cohen · 2 Vegetarian Capsule(s) | Magnesium 250 mg, with malic acid1 other ingredient | bisglycinate, malate |
| Optimum Magnesium Pure TheraPro Rx · 1 Capsule(s) | Magnesium 250 mg, with malic acid1 other ingredient | bisglycinate, malate |
| Daily Magnesium UMZU · 4 Capsule(s) | Magnesium 420 mg2 other ingredients | bisglycinate, gluconate |
| MagPure Malate Jigsaw Health · 1 Capsule(s) | Magnesium 100 mg2 other ingredients | malate |
| Magnesium CHK Nutrition · 3 Tablet(s) | Magnesium 400 mg2 other ingredients | chelate |
| Magnesium Pure Nootropics · 2 Capsule(s) | Magnesium 150 mg2 other ingredients | bisglycinate |
| Magnesium Glycinate 120 mg Pure Prescriptions · 1 Capsule(s) | Magnesium 120 mg2 other ingredients | bisglycinate |
Product names link to the original label record in the NIH Dietary Supplement Label Database. Labels go stale when products are reformulated; check the current package.
Search All Magnesium Supplements
Open Supplement Search, choose the Magnesium tab, and enter "oxide" under Must not contain. The search text filter also removes products containing other oxides, such as zinc oxide, so its count can run lower than this page's.
Related
Data source: NIH Dietary Supplement Label Database, public domain (CC0 1.0). Index built August 9, 2026.