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Calm My Brain, 90 capsules

£41.22 for 90 capsules at Healf. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.

What it really costs, per 100 mg magnesium£1.37One 100 mg dose is our comparison unit for magnesium. It is not a recommendation.
A day£1.37
A week£9.62
A month£41.22
A year£501.51

At one 100 mg dose a day, this pack lasts 30 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Magnesium

  • Servings: 90 ÷ 3 per serving = 30
  • In the pack: 30 × 100 mg = 3 g
  • £41.22 ÷ 3 g × 100 mg = £1.37 per 100 mg magnesium
  • A week £1.37 × 7 = £9.62 · a month × 30 = £41.22 · a year × 365 = £501.51
  • Amount per serving: stated on the label.

Ashwagandha

  • Servings: 90 ÷ 3 per serving = 30
  • In the pack: 30 × 600 mg = 18 g
  • £41.22 ÷ 18 g × 600 mg = £1.37 per 600 mg
  • A week £1.37 × 7 = £9.62 · a month × 30 = £41.22 · a year × 365 = £501.51
  • Amount per serving: extract weight stated on the label.

L-Theanine

  • Servings: 90 ÷ 3 per serving = 30
  • In the pack: 30 × 400 mg = 12 g
  • £41.22 ÷ 12 g × 200 mg = 68.7p per 200 mg
  • A week 68.7p × 7 = £4.81 · a month × 30 = £20.61 · a year × 365 = £250.76
  • 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 →
ZipVitMagnesium 500mgCheapest per 100 mg magnesiumZipVit · 500 mg a serving · 33p a month · a pack lasts 4.9 years1p£19.99View at ZipVit (opens in a new tab)
Magnesium Glycinate X3Protein Works · 1.81 g a serving · 40p a month · a pack lasts 2.2 years1p£10.99View at Protein Works (opens in a new tab)
Magnesium CapsHealf · 500 mg a serving · 41p a month · a pack lasts 1.4 years1p£6.75View at Healf (opens in a new tab)
This productHealf · 100 mg a serving · £41.22 a month · a pack lasts 30 days£1.37shown above

Ranked purely by price per 100 mg magnesium. 236 combination products also contain magnesium.

How it compares: ashwagandha KSM-66

All 27, ranked →
Ashwagandha KSM66 CapsulesCheapest per 600 mgMyprotein · 500 mg a serving · £5.20 a month · a pack lasts 2 months17p£12.99View at Myprotein (opens in a new tab)
VitaBrightAshwagandha Tablets Organic KSM-66VitaBright · 550 mg a serving · £5.45 a month · a pack lasts 11 months18p£59.97View at VitaBright (opens in a new tab)
VitaBrightAshwagandha Tablets Organic KSM-66VitaBright · 550 mg a serving · £5.82 a month · a pack lasts 8 months19p£47.99View at VitaBright (opens in a new tab)
This productHealf · 600 mg a serving · £41.22 a month · a pack lasts 30 days£1.37shown above

Ranked purely by price per 600 mg. 40 combination products also contain ashwagandha.

How it compares: L-theanine

All 12, ranked →
L-TheanineCheapest per 200 mgHealf · 200 mg a serving · £4.12 a month · a pack lasts 4 months14p£16.49View at Healf (opens in a new tab)
L-TheanineHealf · 250 mg a serving · £5.60 a month · a pack lasts 2 months19p£13.99View at Healf (opens in a new tab)
L-TheanineW-Wellness · 250 mg a serving · £6.20 a month · a pack lasts 2 months21p£15.49View at W-Wellness (opens in a new tab)
This productHealf · 400 mg a serving · £20.61 a month · a pack lasts 2 months69pshown above

Ranked purely by price per 200 mg. 70 combination products also contain L-Theanine.

On the label

Magnesium · Blends and other forms
100 mg per serving (stated on the label)
Ashwagandha · KSM-66
600 mg per serving (extract weight stated on the label)
Pack
90 capsules · 30 servings · 3 capsule(s) a serving
Cost per serving
£1.37 (30 servings in the pack)
More label details
L-Theanine · L-theanine
400 mg per serving (stated on the label)
Claimed on the listing
vegetarian
Sold by
Healf
What the listing says
“90 caps” · “Servings Per Container: 30” · “Serving Size: 3 Capsules” · “total withanolides) ; 600 mg” · “min. 5% [30mg] total withanolides”
Ingredients

KSM-66® Ashwagandha Root Extract (Withania somnifera, root) (standardized to min. 5% [30mg] total withanolides), L-Theanine, Magnesium (as Threonate, Glycinate, Citrate, Malate), Vegetable Cellulose (Vegetarian Capsule), Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agent (Magnesium Stearate), 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.

Price history

No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Price at every check
£41.22Healf
First recorded
£41.221 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £41.22

Questions about this product

How much does BrainMD Calm My Brain cost per 600 mg?

£1.37 per 600 mg, from £41.22 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 600 mg dose. The pack holds 18 g in total.

How much does BrainMD Calm My Brain cost per 200 mg?

69p per 200 mg, from £41.22 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

2 months at one 200 mg dose. The pack holds 12 g in total.

How much does BrainMD Calm My Brain cost per 100 mg magnesium?

£1.37 per 100 mg magnesium, from £41.22 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 100 mg dose. The pack holds 3 g in total.

About BrainMD

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