Magnesium Citrate, 90 capsules
£20.89 for 90 capsules at Healf. That works out at 23p per 100 mg magnesium, which ranks it 23rd of the 38 magnesium citrate products we price across 12 UK retailers.
At one 100 mg dose a day, this pack lasts 3 months. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 90 ÷ 3 per serving = 30
- In the pack: 30 × 300 mg = 9 g
- £20.89 ÷ 9 g × 100 mg = 23.2p per 100 mg magnesium
- A week 23.2p × 7 = £1.62 · a month × 30 = £6.96 · a year × 365 = £84.72
- 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.
Cheaper magnesium citrate
All 38, ranked →
Switching to the Vitabiotics pack saves 98p a month at the same 100 mg dose.
Ranked purely by price per 100 mg magnesium. 187 combination products also contain magnesium.
On the label
- Magnesium · Citrate
- 300 mg per serving (stated on the label)
- Pack
- 90 capsules · 30 servings · 3 capsule(s) a serving
- Cost per serving
- 70p (30 servings in the pack)
More label details
- Claimed on the listing
- vegan, vegetarian
- Sold by
- Healf
- What the listing says
- “90 caps” · “Product information per daily intake: 3 capsules” · “Magnesium ; 300mg”
Ingredients
Magnesium Citrate, Capsule Shell (HPMC), Rice Hull.
From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
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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: 3 capsules.
What you paid
Optional. At Healf today: £20.89.
“Order by” allows 3 working days’ delivery from Healf and your spare days.
Price history
No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.
- Price at every check
- £20.89Healf
- First recorded
- £20.891 Oct
- Checked on
- 20 dayssince 1 Oct
- First checked at Healf: £20.89
Questions about this product
How much does BioCare Magnesium Citrate cost per 100 mg magnesium?
23p per 100 mg magnesium, from £20.89 for 90 capsules at Healf, checked on 20 October 2026.
Is it the cheapest magnesium citrate in the UK?
No, it is 23rd of 38. Magnesium Citrate Tablets 700mg at Simply Supplements works out at 2p per 100 mg magnesium.
How long does one pack last?
3 months at one 100 mg dose. The pack holds 9 g in total.
About BioCare
All 96 BioCare products, priced per dose
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