Optimal Magnesium, 90 capsules
£15.49 for 90 capsules at Healf. That works out at 11p per 100 mg magnesium, which ranks it 36th of the 79 magnesium blends and other forms we price across 15 UK retailers.
At one 100 mg dose a day, this pack lasts 4 months. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 90 ÷ 1 per serving = 90
- In the pack: 90 × 150 mg = 13.5 g
- £15.49 ÷ 13.5 g × 100 mg = 11.5p per 100 mg magnesium
- A week 11.5p × 7 = 80p · a month × 30 = £3.44 · a year × 365 = £41.88
- 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 blends and other forms
All 79, ranked →
Switching to the Protein Works pack saves £1.01 a month at the same 100 mg dose.
Ranked purely by price per 100 mg magnesium. 236 combination products also contain magnesium.
On the label
- Magnesium · Blends and other forms
- 150 mg per serving (stated on the label)
- Pack
- 90 capsules · 90 servings · 1 capsule(s) a serving
- Cost per serving
- 17p (90 servings in the pack)
More label details
- Sold by
- Healf
- What the listing says
- “90 caps” · “Servings Per Container: 90” · “Serving Size: 1 Capsule” · “Magnesium Lysinate Glycinate Chelate) ; 150 mg”
Ingredients
Magnesium (Albion®) (as Di Magnesium Malate- Granular, Di Magne- sium Malate, and Magnesium Lysinate Glycinate Chelate), Vcaps® Plus Hypromellose Capsule, Antioxidant (Ascorbyl Palmitate), L-Leucine, Anti-Caking Agent (Silicon Dioxide)
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: 1 capsule.
What you paid
Optional. At Healf today: £15.49.
“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
- £15.49Healf
- First recorded
- £15.491 Oct
- Checked on
- 20 dayssince 1 Oct
- First checked at Healf: £15.49
Questions about this product
How much does Seeking Health Optimal Magnesium cost per 100 mg magnesium?
11p per 100 mg magnesium, from £15.49 for 90 capsules at Healf, checked on 20 October 2026.
Is it the cheapest of the magnesium blends and other forms in the UK?
No, it is 36th of 79. Magnesium 500mg at ZipVit works out at 1p per 100 mg magnesium.
How long does one pack last?
4 months at one 100 mg dose. The pack holds 13.5 g in total.
About Seeking Health
All 49 Seeking Health products, priced per dose
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