Products / Magnesium / By retailer
2 products with an RRP or regular price seen at Good Price Pharmacy, lowest cost per 100 mg of magnesium first. Prices are as seen on the dates shown, most recently 27 Oct 2026. Check the shop before you rely on one.
0 of 2 could be checked against their own figures (why the others can’t be). None links a test document yet (what that means).
Sorted by cost per 100 mg at Good Price Pharmacy, lowest first, until you sort. 2 products so far, added a few at a time, so not the whole market. No brand or retailer pays for inclusion, placement or marks.
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.
“Label says” and “Our maths” are the magnesium you actually get per serve, not the compound weight. Labels call it elemental magnesium. “Cost per 100 mg” is what that magnesium costs, so small and large doses compare fairly.
| Line | Product | Form | Label says | Our maths | Adds up? | Testing | Cost per 100 mg of magnesium | Cost per serve | Price used | Compare |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Nature's Own Magnesium Glycinate (150 mg elemental per tablet)Glycinaterecall noticeLowest cost per 100 mg of 4 glycinates; figures can’t be double-checked; AUST L 464493; 1 tablet a serve | glycinate | 150mgper brand page: the brand’s product page | Can’t checkonly the magnesium figure givenwhy? | can’t check: no compound weight | no testing claim found | $0.17 | 25c a tablet | RRP $49.49 · 200 tabletsGood Price Pharmacy · 27 Oct 2026 | |
| 2 | Herbs of Gold Magnesium Citrate 900CitrateHighest cost per 100 mg of 2 citrates; figures can’t be double-checked; AUST L 180203; 1 capsule a serve | citrate | 145.8mgper brand page: the brand’s product page | Can’t checkonly the magnesium figure givenwhy? | can’t check: no compound weight | no testing claim found | $0.39 | 58c a capsule | RRP $34.50 · 60 capsulesGood Price Pharmacy · 27 Oct 2026 |
No product matches these filters.
“Label says” is the magnesium per serve from the source we read: the pack, the brand’s page or a shop listing. “Our maths” is the compound weight × its share of magnesium. “Adds up” means the two are within 15 %. Cost per 100 mg uses the stated magnesium and the newest RRP or regular price seen at Good Price Pharmacy. “Price used” is that price, with its pack and date. We don’t use sale or member prices. No RRP or regular price yet? Then there’s no cost, and the product sorts last. Prices older than 35 days say “may have changed”. What the marks mean. How we work out each figure.
Each product page shows every shop we checked, with the full price history. Prices here are what Good Price Pharmacy showed; another shop may be lower. Other retailers.