Fusion Magnesium Advanced (400 mg elemental per 2-tablet dose)
Two tablets give you 400 mg of magnesium. Most of it adds up (70 %). It costs $0.23 per 100 mg at the RRP.
mostly adds up · 70 % no testing claim found
Compare with another productMagnesium blends (mixed compounds): all 7 compared
What the brand’s product page says
- Compound, as written
- “Each tablet contains: Magnesium glycinate 491mg equiv. to magnesium 70mg; Magnesium citrate 389mg equiv. to magnesium 60mg; Magnesium amino acid chelate 300mg equiv. to magnesium 60mg; Magnesium aspartate tetrahydrate 150mg equiv. to magnesium 10mg; Total magnesium 200mg”
- Compound per serve
- 2,660 mg in total across 4 compounds, listed below
- Magnesium per serve
- 400 mg
- Serve
- 2 tablets, 60 serves per pack, tablet
- Compounds listed
- Magnesium glycinate: 982 mg (stated as 140 mg magnesium)
- Magnesium citrate: 778 mg (stated as 120 mg magnesium)
- Magnesium amino acid chelate: 600 mg (stated as 120 mg magnesium)
- Magnesium aspartate tetrahydrate: 300 mg (stated as 20 mg magnesium)
- Register entry
- No AUST L number shown on the brand’s product page. A register search on 27 Oct 2026 didn’t reach its entry page. That doesn’t mean it’s unlisted.
- Read from
- Fusion product page (opens in a new tab) (brand site), read 27 Oct 2026
How much of the compound is magnesium
Only part of each compound is magnesium. Here’s that share for each one. Some compounds come in several versions, for example with water in the crystals. Each version has its own share.
- Magnesium glycinate: 14.1 % magnesiumThis name covers more than one version, and the brand’s product page doesn’t say which. We use our standard one.
- Magnesium citrate: 16.2 % magnesiumThis name covers more than one version, and the brand’s product page doesn’t say which. We use our standard one.
- Magnesium amino acid chelate: no standard share. With no amino acid named, it could be any of several compounds, each with its own share.
- Magnesium aspartate tetrahydrate: 6.7 % magnesiumThe brand’s product page names this version (“tetrahydrate”), so we use its share.
Our maths
Magnesium glycinate 982 mg → about 138.5 mg magnesium ✓
Show the chemistry
982 mg × 0.141 = 138.5 mgVersion used: magnesium glycinate (same salt as bisglycinate) (Mg(C2H4NO2)2, molar mass 172.42 g/mol), share 0.141. reference (opens in a new tab)
Other versions: magnesium glycinate dihydrate 0.1166.
Magnesium citrate 778 mg → about 125.7 mg magnesium ✓
Show the chemistry
778 mg × 0.1616 = 125.7 mgVersion used: trimagnesium dicitrate, anhydrous (Mg3(C6H5O7)2, molar mass 451.11 g/mol), share 0.1616. reference (opens in a new tab)
Other versions: magnesium citrate 1:1, MgHC6H5O7, anhydrous 0.1134; trimagnesium dicitrate nonahydrate 0.1189.
Magnesium amino acid chelate 600 mg → can’t work out: no standard share
Show the chemistry
The stated 120 mg from 600 mg would mean a share of 0.2.
Magnesium aspartate tetrahydrate 300 mg → about 20.2 mg magnesium ✓
Show the chemistry
300 mg × 0.0674 = 20.2 mgVersion used: magnesium aspartate tetrahydrate, share 0.0674. (worked out from standard atomic weights)
Other versions: magnesium aspartate dihydrate 0.0749; magnesium aspartate, anhydrous 0.0842.
Total: can’t be worked out
Do the figures agree?
Magnesium glycinate: stated 140 mg, our maths 138.5 mg (+1.1 %) ✓Magnesium citrate: stated 120 mg, our maths 125.7 mg (-4.6 %) ✓Magnesium amino acid chelate: stated 120 mg; can’t check, no standard shareMagnesium aspartate tetrahydrate: stated 20 mg, our maths 20.2 mg (-1.1 %) ✓parts add up to 400 mg = stated total 400 mg ✓checked: 280 of 400 mg = 70 %mostly adds up · 70 %
Mostly. The brand’s product page gives a weight and a magnesium figure for each of the 4 compounds. The magnesium figures add up to the stated 400 mg. We can check 3 of them, and each is within 15 % of our maths. Together they’re 280 mg, or 70 % of the magnesium. The other 120 mg is from a chelate, and only the brand knows its exact make-up. Why it matters to you: most of the magnesium behind the cost per 100 mg rests on figures that agree. The rest rests on the stated figure alone. It isn’t a lab test of what’s inside.
Third-party testing
no testing claim found
No testing claim or certificate on the brand’s product page. That’s true of most products here, and it isn’t a mark against this one. The TGA doesn’t check each product before it goes on sale. If batch testing matters to you, ask the brand.
Our note: Neither the brand’s page nor the Chemist Warehouse listing mentions testing (both read 27 Oct 2026). We looked for a HASTA (Human and Supplement Testing Australia) or Informed Sport listing or certificate naming this brand, and found none.
Prices, and what the magnesium costs
Prices are the recommended retail price (RRP), or the regular shelf price where no RRP is shown. Sale and member prices aren’t used, so you may pay less.
Price used: RRP $55.99 · 120 tablets · Chemist Warehouse · 27 Oct 2026.
$55.99 ÷ 60 serves = 93.3c a serve93.3c ÷ 400 mg × 100 = $0.23 per 100 mg of magnesiumWe use the stated magnesium, not our maths, because that’s the figure you’re given. The price used is the lowest current RRP or regular price we’ve seen, at any shop. The list starts with the lowest current cost per 100 mg; earlier prices follow. Rows marked “Earlier observation (price type not recorded)” were seen up to 27 Oct 2026, before we switched to RRP. Some were sale prices. They stay here, greyed, as history, and no figure uses them.
| Retailer | Price type | Price and pack | Per serve | Per 100 mg | Seen | Note |
|---|---|---|---|---|---|---|
| Chemist Warehouse (opens in a new tab)price used above | RRP | $55.99 for 120 tablets | 93c | $0.23 | 27 Oct 2026 | 120 tablets = 60 two-tablet serves. Page prints "Don't Pay RRP $55.99" and '$11.00 Off RRP'; selling price shown was $44.99 (not used). |
| Chemist Warehouse (opens in a new tab)not used | Earlier observation (price type not recorded) | $44.99 for 120 tablets | not used | not used | 26 Oct 2026 | 120 tablets = 60 two-tablet serves. '$11.00 Off RRP', 'Don't Pay RRP $55.99'; sale price. |
Notes
The brand’s page and the Chemist Warehouse listing give figures per tablet, with a total of 200 mg. We doubled them because the directions are 2 tablets once a day.
Corrections
- 27 Oct 2026: Label source changed from the Chemist Warehouse listing (Chemist Warehouse listing, 120 tablets (opens in a new tab)) to the brand's own product page (Fusion product page (opens in a new tab)), read 27 Oct 2026; a brand's page ranks above a retailer listing. Figures unchanged: per tablet glycinate 491 mg (70 mg), citrate 389 mg (60 mg), chelate 300 mg (60 mg), aspartate tetrahydrate 150 mg (10 mg), total magnesium 200 mg; doubled for the 2-tablet serve. Compound wording updated to the brand page's panel text.
Sources we opened
Added 26 Oct 2026. Figures last read 27 Oct 2026.