Super Magnesium 250mg with Vitamin B Complex, 120 tablets
£12.29 for 120 tablets at Simply Supplements. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.
At one 100 mg dose a day, this pack lasts 10 months. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 120 ÷ 1 per serving = 120
- In the pack: 120 × 250 mg = 30 g
- £12.29 ÷ 30 g × 100 mg = 4.1p per 100 mg magnesium
- A week 4.1p × 7 = 29p · a month × 30 = £1.23 · a year × 365 = £14.95
- Amount per serving: stated on the label.
The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.
How it compares: magnesium blends and other forms
All 79, ranked →
Ranked purely by price per 100 mg magnesium. 236 combination products also contain magnesium.
On the label
- Magnesium · Blends and other forms
- 250 mg per serving (stated on the label)
- Pack
- 120 tablets · 120 servings · 1 tablet(s) a serving
- Cost per serving
- 10p (120 servings in the pack)
More label details
- Barcode
- 5056049517998
- Sold by
- Simply Supplements
- What the listing says
- “Super Magnesium 250mg” · “confirmed from the retailer's own product page, not this listing's text: amount per serving 250.0; amount unit mg; amount refers to elemental; units per serving 1.0; pack units 120; pack unit type tablet”
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One 100 mg dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 1 tablet.
What you paid
Optional. At Simply Supplements today: £12.29.
“Order by” allows 3 working days’ delivery from Simply Supplements and your spare days.
Price history
No price change since 21 September 2026. Checked on 29 days, most recently 20 October 2026.
- Price at every check
- £12.29Simply Supplements
- First recorded
- £12.2921 Sept
- Checked on
- 29 dayssince 21 Sept
- First checked at Simply Supplements: £12.29
Questions about this product
How much does Simply Supplements Super Magnesium 250mg with Vitamin B Complex cost per 100 mg magnesium?
4p per 100 mg magnesium, from £12.29 for 120 tablets at Simply Supplements, checked on 20 October 2026.
How long does one pack last?
10 months at one 100 mg dose. The pack holds 30 g in total.
About Simply Supplements
Founded 2004 · Yaxley, Peterborough, England
Simply Supplements is an online vitamins and supplements retailer that started in Guernsey in 2004 and is now based in Yaxley, near Peterborough. It is the trading name of Pinnacle Health Nutrition Ltd, a privately owned UK company.
All 134 Simply Supplements products, priced per doseVisit Simply Supplements (opens in a new tab)
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