Calm Alchemy, 60 capsules
£47.99 for 60 capsules at Healf. That works out at £2.54 per 100 mg magnesium, which ranks it 63rd of the 66 magnesium bisglycinate products we price across 13 UK retailers.
At one 100 mg dose a day, this pack lasts 19 days. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 60 ÷ 2 per serving = 30
- In the pack: 30 × 63 mg = 1.89 g
- £47.99 ÷ 1.89 g × 100 mg = £2.54 per 100 mg magnesium
- A week £2.54 × 7 = £17.77 · a month × 30 = £76.17 · a year × 365 = £926.79
- 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 bisglycinate
All 66, ranked →
Switching to the Healf pack saves £60.19 a month at the same 100 mg dose.
Ranked purely by price per 100 mg magnesium. 86 combination products also contain magnesium.
On the label
- Magnesium · Bisglycinate (glycinate)
- 63 mg per serving (stated on the label)
- Pack
- 60 capsules · 30 servings · 2 capsule(s) a serving
- Cost per serving
- £1.60 (30 servings in the pack)
More label details
- Sold by
- Healf
- What the listing says
- “60 caps” · “Servings Per Container: 30” · “Serving Size: 2 Capsules” · “Magnesium (as Magnesium Bisglycinate) ; 63 mg”
Ingredients
Proprietary Blend (Inositol, L-Theanine, Organic Passionflower 10:1 Extract), Magnesium (as Magnesium Bisglycinate), Rice Flour, Hypromellose (Vegetable Capsule)
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: 2 capsules.
What you paid
Optional. At Healf today: £47.99.
“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
- £47.99Healf
- First recorded
- £47.991 Oct
- Checked on
- 20 dayssince 1 Oct
- First checked at Healf: £47.99
Questions about this product
How much does Arrae Calm Alchemy cost per 100 mg magnesium?
£2.54 per 100 mg magnesium, from £47.99 for 60 capsules at Healf, checked on 20 October 2026.
Is it the cheapest magnesium bisglycinate in the UK?
No, it is 63rd of 66. Magnesium Bisglycinate 1500mg at Simply Supplements works out at 1p per 100 mg magnesium.
How long does one pack last?
19 days at one 100 mg dose. The pack holds 1.89 g in total.