Best magnesium in Australia: what’s actually in the tub?
See how much magnesium you actually get, and what it costs.
Compound vs elemental ↗30 products shown
AUD · shipping excluded · no member discounts| Product / pack | Form | Label entry | Elemental Mg | Cost / 100 mg | Source |
|---|---|---|---|---|---|
| Nutra-LifeMagnesium Complete Forte100 capsules · $29.99Compared per 1 capsuleLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendoxide, phosphate, amino acid chelate | 400 mgalready elemental | 400 mgstated on label | $0.07elemental magnesium | Nutra-Life ↗Checked 22 Oct 2026 |
| BlackmoresSuper Magnesium Plus180 tablets · $45.00Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendoxide, citrate, amino acid chelate | 305 mgalready elemental | 305 mgstated on label | $0.08elemental magnesium | Blackmores ↗Checked 22 Oct 2026 |
| BlackmoresBio Magnesium50 tablets · $15.00Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendoxide, phosphate | 301.5 mgalready elemental | 301.5 mgstated on label | $0.10elemental magnesium | Blackmores ↗Checked 22 Oct 2026 |
| Caruso'sSuper Magnesium120 tablets · $37.99Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendphosphate, oxide, orotate, citrate, aspartate, amino acid chelate | 300 mgalready elemental | 300 mgstated on label | $0.11elemental magnesium | Chemist Warehouse ↗Checked 22 Oct 2026 |
| Healthy CareMagnesium Glycinate120 tablets · $29.99Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatetablet | 1,140 mgcompound weight | 160 mgstated on label | $0.16elemental magnesium | Chemist Warehouse ↗Checked 22 Oct 2026 |
| Nature's WayMagnesium Glycinate130 tablets · $32.99Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatetablet | 1,142 mgcompound weight | 160 mgstated on label | $0.16elemental magnesium | Chemist Warehouse ↗Checked 22 Oct 2026 |
| SUPER LYTEMagnesium Malate Powder100 g powder · $27.95Compared per 2.5 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | malatepowder | 2,500 mgcompound weight | ≈375 mgbrand estimate | ≈$0.19elemental magnesium | LYTES ↗Checked 22 Oct 2026 |
| SUPER LYTEMagnesium Glycinate Powder100 g powder · $24.95Compared per 1.6 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatepowder | 1,600 mgcompound weight | ≈208 mgbrand estimate | ≈$0.19elemental magnesium | LYTES ↗Checked 22 Oct 2026 |
| Nature's OwnMagnesium Glycinate120 tablets · $34.99Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatetablet | 150 mgalready elemental | 150 mgstated on label | $0.19elemental magnesium | Chemist Warehouse ↗Checked 22 Oct 2026 |
| Herbs of GoldMagnesium Forte60 tablets · $34.50Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendamino acid chelate, citrate, glycinate, orotate | 220 mgalready elemental | 220 mgstated on label | $0.26elemental magnesium | Herbs of Gold ↗Checked 22 Oct 2026 |
| BlackmoresMagnesium Glycinate50 tablets · $19.99Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatetablet | 1,100 mgcompound weight | 150 mgstated on label | $0.27elemental magnesium | Chemist Warehouse ↗Checked 22 Oct 2026 |
| BlackmoresMagnesium50 tablets · $20.00Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | citratetablet | 970.8 mgcompound weight | 150 mgstated on label | $0.27elemental magnesium | Blackmores ↗Checked 22 Oct 2026 |
| Bulk NutrientsMagnesium Glycinate Capsules120 capsules · $29.00Compared per 2 capsulesLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatecapsule | 1,310 mgcompound weight | 180 mgstated on label | $0.27elemental magnesium | Bulk Nutrients ↗Checked 22 Oct 2026 |
| SwisseUltiboost Magnesium60 tablets · $24.99Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | citratetablet | 150 mgalready elemental | 150 mgstated on label | $0.28elemental magnesium | Swisse ↗Checked 22 Oct 2026 |
| BlackmoresRecovery Magnesium Powder200 g powder · $39.99Compared per 5 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendcitrate, glycinate | 320 mgalready elemental | 320 mgstated on label | $0.31elemental magnesium | Blackmores ↗Checked 22 Oct 2026 |
| Nutra-LifeMagnesium Glycinate High Strength Citrus180 g powder · $33.99Compared per 6 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatepowder | 350 mgalready elemental | 350 mgstated on label | $0.32elemental magnesium | Chemist Warehouse ↗Checked 22 Oct 2026 |
| SwisseUltiboost Magnesium Glycinate60 tablets · $29.50Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatetablet | 150 mgalready elemental | 150 mgstated on label | $0.33elemental magnesium | Swisse ↗Checked 22 Oct 2026 |
| Herbs of GoldMagnesium Chewable60 tablets · $33.50Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendcitrate, amino acid chelate | 150 mgalready elemental | 150 mgstated on label | $0.37elemental magnesium | Herbs of Gold ↗Checked 22 Oct 2026 |
| SUPER LYTEMagnesium Taurate Powder100 g powder · $33.95Compared per 1.5 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | tauratepowder | 1,500 mgcompound weight | ≈133 mgbrand estimate | ≈$0.38elemental magnesium | LYTES ↗Checked 22 Oct 2026 |
| SUPER LYTEMagnesium Gluconate Powder100 g powder · $20.95Compared per 1.3 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | gluconatepowder | 1,300 mgcompound weight | ≈70 mgbrand estimate | ≈$0.39elemental magnesium | LYTES ↗Checked 22 Oct 2026 |
| Herbs of GoldMagnesium Citrate 90060 capsules · $34.50Compared per 1 capsuleLOWEST COST IN THIS VIEWRead the breakdown ↗ | citratecapsule | 145.8 mgalready elemental | 145.8 mgstated on label | $0.39elemental magnesium | Herbs of Gold ↗Checked 22 Oct 2026 |
| Nutra-LifeMagnesium Hi-Zorb60 capsules · $27.99Compared per 1 capsuleLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendglycinate, amino acid chelate | 105 mgalready elemental | 105 mgstated on label | $0.44elemental magnesium | Nutra-Life ↗Checked 22 Oct 2026 |
| SwisseUltiboost High Strength Magnesium Powder180 g powder · $35.49Compared per 7.5 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendcitrate, glycinate | 300 mgalready elemental | 300 mgstated on label | $0.49elemental magnesium | Swisse ↗Checked 22 Oct 2026 |
| Nutra-LifeMagnesium Glycinate Capsules60 capsules · $33.49Compared per 1 capsuleLOWEST COST IN THIS VIEWRead the breakdown ↗ | glycinatecapsule | 936 mgcompound weight | 105 mgstated on label | $0.53elemental magnesium | Nutra-Life ↗Checked 22 Oct 2026 |
| BlackmoresSleep Sound Magnesium187.5 g powder · $44.99Compared per 7.5 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendcitrate, glycinate | 320 mgalready elemental | 320 mgstated on label | $0.56elemental magnesium | Blackmores ↗Checked 22 Oct 2026 |
| ATP ScienceMagX4 Berry100 g powder · $39.95Compared per 2.5 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | blendorotate, glycinate, threonate, citrate | 150 mgalready elemental | 150 mgstated on label | $0.67elemental magnesium | Nutrition Capital ↗Checked 22 Oct 2026 |
| BlackmoresMagMin50 tablets · $16.49Compared per 1 tabletLOWEST COST IN THIS VIEWRead the breakdown ↗ | aspartatetablet | 500 mgcompound weight | 37.4 mgstated on label | $0.88elemental magnesium | Blackmores ↗Checked 22 Oct 2026 |
| Nature's OwnHigh Strength Magnesium Orotate60 capsules · $29.99Compared per 1 capsuleLOWEST COST IN THIS VIEWRead the breakdown ↗ | orotatecapsule | 52.68 mgalready elemental | 52.68 mgstated on label | $0.95elemental magnesium | Chemist Warehouse ↗Checked 22 Oct 2026 |
| Switch NutritionMag3 Magnesium L-Threonate60 g powder · $49.95Compared per 2 g powderLOWEST COST IN THIS VIEWRead the breakdown ↗ | threonatepowder | 2,000 mgcompound weight | 144 mgstated on label | $1.16elemental magnesium | Switch Nutrition ↗Checked 22 Oct 2026 |
| Eternal ElixirMagnesium L-Threonate 2000 mg90 capsules · $59.99Compared per 3 capsulesLOWEST COST IN THIS VIEWRead the breakdown ↗ | threonatecapsule | 2,000 mgcompound weight | ≈144 mgbrand estimate | ≈$1.39elemental magnesium | Eternal Elixir ↗Checked 22 Oct 2026 |
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Blue marks the lowest unrounded cost in this view, not a health recommendation. Bars use a 500 mg display scale, not an intake target. “≈” carries the brand’s approximate elemental amount into the calculated cost. Prices may change.
Two numbers.
One label.
Take this actual label entry from Bulk Nutrients. The larger figure includes the rest of the compound. The elemental figure tells you the magnesium amount.
See the full breakdown ↗Both figures are stated in the brand’s nutrition panel. No conversion factor is used.
Choose your question.
Same quantity.
Clearer comparison.
“Elemental magnesium” is the magnesium itself. A label can quote the weight of the whole compound, the elemental amount, or both. We show the basis beside every number.
We use the elemental amount stated by the brand or retailer. Some brands give approximate amounts, which we mark “≈”. We do not infer a product’s content from a generic percentage.
How we calculate price per 100 mg
Pack price ÷ (comparison serves per pack × elemental magnesium per serve) × 100. Calculations use unrounded numbers; prices are rounded to cents for display. An approximate elemental amount gives an approximate cost.
A comparison serve is the unit shown in each row, such as one tablet, two capsules or a measured weight of powder. It is a bookkeeping unit, not personal intake advice.
What the blue row and bars mean
The blue row has the lowest unrounded cost per 100 mg among the products currently shown. It is not a health recommendation. Prices refer to the exact pack shown, exclude delivery and conditional discounts, and may change.
Bars use a 500 mg display scale for visual consistency. This is not a target or a recommended intake. Magnesium amount alone does not establish absorption or effectiveness.
What remains unverified
Product testing documents, regulatory identifiers and complete ingredient reviews are not confirmed for every entry. A blank field means “not reviewed or not stated”, not that a feature is absent. We do not score, rank by health effect or infer those missing facts.
You can check
our working.
Every row links to its brand or retailer. Prices and label entries were checked on 22 October 2026. This is a selected 30-product dataset, not a complete Australian market survey.
The US NIH supplement fact sheet explains elemental magnesium in supplement labels. The NHMRC Nutrient Reference Values provide Australian dietary context. Neither source ranks these products.
Some product and price fields remain unverified beyond the linked listing. Missing testing and regulatory details are shown as unknown.
Read source notes and download all 30 records ↗