BioCeuticals Ultra Muscleze (powder, 6 g dose)
One scoop gives you 280.2 mg of magnesium. Only 13 % of it can be checked, and that part adds up. It costs $0.39 per 100 mg at the regular price.
can’t check: compound unclear no testing claim found
Compare with another productMagnesium blends (mixed compounds): all 7 compared
What the brand’s product page says
- Compound, as written
- “Magnesium amino acid chelate - UltraMag® 2.1 g, equiv. to magnesium 244 mg; Magnesium oxide heavy 60 mg, equiv. to magnesium 36.2 mg”
- Compound per serve
- 2,160 mg in total across 2 compounds, listed below
- Magnesium per serve
- 280.2 mg
- Serve
- 6 g (1 level scoop), 60 serves per pack, powder
- Compounds listed
- Magnesium amino acid chelate - UltraMag®: 2,100 mg (stated as 244 mg magnesium)
- Magnesium oxide heavy: 60 mg (stated as 36.2 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
- BioCeuticals 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.
- Magnesium amino acid chelate - UltraMag®: no standard share. With no amino acid named, it could be any of several compounds, each with its own share.
- Magnesium oxide heavy: 60.3 % magnesium
Our maths
Magnesium amino acid chelate - UltraMag® 2,100 mg → can’t work out: no standard share
Show the chemistry
The stated 244 mg from 2,100 mg would mean a share of 0.116.
Magnesium oxide heavy 60 mg → about 36.2 mg magnesium ✓
Show the chemistry
60 mg × 0.603 = 36.2 mgVersion used: magnesium oxide (MgO, molar mass 40.30 g/mol), share 0.603. reference (opens in a new tab)
Total: can’t be worked out
Do the figures agree?
Magnesium amino acid chelate - UltraMag®: stated 244 mg; can’t check, no standard shareMagnesium oxide heavy: stated 36.2 mg, our maths 36.2 mg (+0.1 %) ✓parts add up to 280.2 mg = stated total 280.2 mg ✓checked: 36.2 of 280.2 mg = 13 %can’t check: compound unclear
We can’t tell. The brand’s product page calls the compound “Magnesium amino acid chelate - UltraMag®”. That name covers several compounds, each with a different share of magnesium. So there’s no single number to multiply by, and we can’t check the stated 280.2 mg. This is common, and it isn’t a mark against the product. Why it matters to you: cost per 100 mg still works. It uses the stated magnesium figure. If the exact compound matters to you, ask the brand which amino acid it uses. 13 % of the magnesium could be checked; that part adds up.
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: Regular price $65.99 · 360 g · Chemist Warehouse · 27 Oct 2026.
$65.99 ÷ 60 serves = $1.10 a scoop$1.10 ÷ 280.2 mg × 100 = $0.39 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 | Regular price | $65.99 for 360 g | $1.10 | $0.39 | 27 Oct 2026 | 360 g = 60 x 6 g doses. Page shows one price, '$65.99', with no RRP, EDLP, sale or member wording. Listing marked 'PRACTITIONER ONLY'. |
| Chemist Warehouse (opens in a new tab)not used | Earlier observation (price type not recorded) | $65.99 for 360 g | not used | not used | 26 Oct 2026 | 360 g = 60 x 6 g doses. No RRP shown. Page marked 'Practitioner only'. |
Notes
The brand’s page prints no total, so 280.2 mg is its two magnesium figures added; it also has glutamine, taurine, carnitine, vitamins and minerals. The Chemist Warehouse listing gives the same figures and says ‘PRACTITIONER ONLY’.
Corrections
- 27 Oct 2026: Label source changed from the Chemist Warehouse listing (Chemist Warehouse listing, 360 g (opens in a new tab)) to the brand's own product page (BioCeuticals product page (opens in a new tab)), read 27 Oct 2026; a brand's page ranks above a retailer listing. Figures unchanged: chelate 2.1 g (magnesium 244 mg) and heavy oxide 60 mg (magnesium 36.2 mg), 280.2 mg in all. Compound wording updated to the brand page's panel text.
Sources we opened
Added 26 Oct 2026. Figures last read 27 Oct 2026.