Magnesium Caps, 100 capsules
£6.75 for 100 capsules at Healf. That works out at 1p per 100 mg magnesium, which ranks it 3rd of the 79 magnesium blends and other forms we price across 15 UK retailers.
At one 100 mg dose a day, this pack lasts 1.4 years. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 100 ÷ 1 per serving = 100
- In the pack: 100 × 500 mg = 50 g
- £6.75 ÷ 50 g × 100 mg = 1.35p per 100 mg magnesium
- A week 1.35p × 7 = 9p · a month × 30 = 41p · a year × 365 = £4.93
- 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 ZipVit pack saves 7p 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
- 500 mg per serving (stated on the label)
- Pack
- 100 capsules · 100 servings · 1 capsule(s) a serving
- Cost per serving
- 7p (100 servings in the pack)
More label details
- Claimed on the listing
- vegetarian
- Sold by
- Healf
- What the listing says
- “100 caps” · “Servings Per Container: 100” · “Serving Size: 1 Vegetarian Capsule” · “succinate] ; 500 mg”
Ingredients
Magnesium [as Magnesium oxide, citrate, succinate], Vegetable Cellulose (Capsule), Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agent (Stearic Acid), Anti-Caking Agent (Silicon Dioxide)
From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
Add to your basket
View basketYour basket prices everything you take together: whole packs, delivery included, from as few websites as you like.
One 100 mg dose is our comparison unit, not a recommendation.
Add to my stack
My stackSee when it runs out, the day to reorder by and what it costs you a day. Free, kept on this device.
Filled in from the label’s serving: 1 capsule.
What you paid
Optional. At Healf today: £6.75.
“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
- £6.75Healf
- First recorded
- £6.751 Oct
- Checked on
- 20 dayssince 1 Oct
- First checked at Healf: £6.75
Questions about this product
How much does Life Extension Magnesium Caps cost per 100 mg magnesium?
1p per 100 mg magnesium, from £6.75 for 100 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 3rd of 79. Magnesium 500mg at ZipVit works out at 1p per 100 mg magnesium.
How long does one pack last?
1.4 years at one 100 mg dose. The pack holds 50 g in total.
About Life Extension
All 19 Life Extension products, priced per dose
More from Life Extension
- Extend-Release Magnesiummagnesium blends and other forms · 60 capsules5p per 100 mg magnesiumDetails and price history
- Neuro-Mag Magnesium L-Threonatemagnesium L-threonate · 90 capsules68p per 100 mg magnesiumDetails and price history
- Neuro-Mag Magnesium L Threonatemagnesium L-threonate · 30 servings · Tropical Punch86p per 100 mg magnesiumDetails and price history
- Pantothenic Acidpantothenic acid (B5) · 100 capsules16p per 500 mgCheapest per dose in its tableDetails and price history
