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Home › Minerals › Magnesium

BiOptimizersMinerals

Sleep Breakthrough Capsules, 60 capsules

£29.49 for 60 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£2.81One 100 mg dose is our comparison unit for magnesium. It is not a recommendation.
A day£2.81
A week£19.66
A month£84.26
A year£1025.13

At one 100 mg dose a day, this pack lasts 11 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Magnesium

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 35 mg = 1.05 g
  • £29.49 ÷ 1.05 g × 100 mg = £2.81 per 100 mg magnesium
  • A week £2.81 × 7 = £19.66 · a month × 30 = £84.26 · a year × 365 = £1025.13
  • Amount per serving: stated on the label.

Glycine

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 588 mg = 17.6 g
  • £29.49 ÷ 17.6 g × 3 g = £5.02 per 3 g
  • A week £5.02 × 7 = £35.11 · a month × 30 = £150.46 · a year × 365 = £1830.59
  • Amount per serving: stated on the label.

L-Theanine

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 200 mg = 6 g
  • £29.49 ÷ 6 g × 200 mg = 98.3p per 200 mg
  • A week 98.3p × 7 = £6.88 · a month × 30 = £29.49 · a year × 365 = £358.80
  • Amount per serving: stated on the label.

Taurine

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 200 mg = 6 g
  • £29.49 ÷ 6 g × 1 g = £4.92 per 1 g
  • A week £4.92 × 7 = £34.41 · a month × 30 = £147.45 · a year × 365 = £1793.98
  • Amount per serving: stated on the label.

Vitamin B6

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 2.4 mg = 72 mg
  • £29.49 ÷ 72 mg × 50 mg = £20.48 per 50 mg
  • A week £20.48 × 7 = £143.35 · a month × 30 = £614.37 · a year × 365 = £7474.90
  • Amount per serving: stated on the label.

Zinc

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 1.5 mg = 45 mg
  • £29.49 ÷ 45 mg × 15 mg = £9.83 per 15 mg zinc
  • A week £9.83 × 7 = £68.81 · a month × 30 = £294.90 · a year × 365 = £3587.95
  • 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 bisglycinate

All 66, ranked →
Magnesium Bisglycinate 1500mgCheapest per 100 mg magnesiumSimply Supplements · 1.5 g a serving · 43p a month · a pack lasts 2.5 years1p£12.99View at Simply Supplements (opens in a new tab)
One NutritionPure Magnesium BisglycinateVitamin Planet · 700 mg a serving · 96p a month · a pack lasts 1.7 years3p£20.24View at Vitamin Planet (opens in a new tab)
ZipVitMagnesium Glycinate 2000mgZipVit · 400 mg a serving · £1.00 a month · a pack lasts 2 years3p£23.99View at ZipVit (opens in a new tab)
This productHealf · 35 mg a serving · £84.26 a month · a pack lasts 11 days£2.81shown above

Ranked purely by price per 100 mg magnesium. Labels here do not all state the same thing: this one gives stated on the label, the cheapest gives estimated from the compound weight using our conversion factor. Check both before choosing. 86 combination products also contain magnesium.

How it compares: glycine

All 12, ranked →
GlycineCheapest per 3 gBulk · 2 g a serving · 81p a month · a pack lasts 11 months3p£8.99View at Bulk (opens in a new tab)
GlycineBulk · 2 g a serving · 90p a month · a pack lasts 5 months3p£4.99View at Bulk (opens in a new tab)
Glycine CapsulesMyprotein · 3 g a serving · £5.49 a month · a pack lasts 30 days18p£5.49View at Myprotein (opens in a new tab)
This productHealf · 588 mg a serving · £150.46 a month · a pack lasts 6 days£5.02shown above

Ranked purely by price per 3 g. 34 combination products also contain glycine.

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 · 200 mg a serving · £29.49 a month · a pack lasts 30 days98pshown above

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

How it compares: taurine

All 10, ranked →
TaurineCheapest per 1 gBulk · 1 g a serving · 27p a month · a pack lasts 2.7 years1p£8.89View at Bulk (opens in a new tab)
TaurineBulk · 1 g a serving · 27p a month · a pack lasts 1.4 years1p£4.49View at Bulk (opens in a new tab)
L-Taurine 1200mgSimply Supplements · 1.2 g a serving · £2.23 a month · a pack lasts 5 months7p£10.69View at Simply Supplements (opens in a new tab)
This productHealf · 200 mg a serving · £147.45 a month · a pack lasts 6 days£4.92shown above

Ranked purely by price per 1 g. 59 combination products also contain taurine.

How it compares: vitamin B6 P-5-P

All 4, ranked →
P5P 50Cheapest per 50 mgHealf · 50 mg a serving · £8.55 a month · a pack lasts 6 months28p£51.30View at Healf (opens in a new tab)
P5P 50Healf · 50 mg a serving · £9.00 a month · a pack lasts 2 months30p£18.00View at Healf (opens in a new tab)
Pyridoxal 5'-PhosphateHealf · 33.8 mg a serving · £11.26 a month · a pack lasts 4 months38p£45.69View at Healf (opens in a new tab)
This productHealf · 2.4 mg a serving · £614.37 a month · a pack lasts 1 day£20.48shown above

Ranked purely by price per 50 mg. 158 combination products also contain vitamin B6.

How it compares: zinc picolinate

All 15, ranked →
Zinc PicolinateCheapest per 15 mg zincHealf · 50 mg a serving · 75p a month · a pack lasts 1.1 years2p£9.99View at Healf (opens in a new tab)
Zinc PicolinateHealf · 50 mg a serving · 86p a month · a pack lasts 7 months3p£5.73View at Healf (opens in a new tab)
Zinc Picolinate 22mgHealf · 22 mg a serving · £1.49 a month · a pack lasts 5 months5p£7.29View at Healf (opens in a new tab)
This productHealf · 1.5 mg a serving · £294.90 a month · a pack lasts 3 days£9.83shown above

Ranked purely by price per 15 mg zinc. 36 combination products also contain zinc.

On the label

Magnesium · Bisglycinate (glycinate)
35 mg per serving (stated on the label)
Glycine · Glycine
588 mg per serving (stated on the label)
Pack
60 capsules · 30 servings · 2 capsule(s) a serving
Cost per serving
98p (30 servings in the pack)
More label details
L-Theanine · L-theanine
200 mg per serving (stated on the label)
Taurine · Taurine
200 mg per serving (stated on the label)
Vitamin B6 · P-5-P (active form)
2.4 mg per serving (stated on the label)
Zinc · Picolinate
1.5 mg per serving (stated on the label)
Sold by
Healf
What the listing says
“60 caps” · “Servings Per Container: 30” · “Serving Size: 2 Capsules” · “L-Glycine ; 588 mg”
Ingredients

Vitamin B6, Magnesium, Zinc, Glycine, Taurine, L-Theanine, Magnolia Bark Extract. Other Ingredients: Hypromellose (Capsule), Microcrystalline Cellulose, Ascorbyl Palmitate.

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

3 price changes since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Lowest recorded
£24.991 Oct
Highest recorded
£29.499 Oct
First recorded
£24.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. Up at Healf: £24.99 → £29.49 (+18%)
  2. Down at Healf: £29.49 → £24.99 (−15%)
  3. Up at Healf: £24.99 → £29.49 (+18%)
1 earlier entry
  1. First checked at Healf: £24.99

Questions about this product

How much does BiOptimizers Sleep Breakthrough Capsules cost per 3 g?

£5.02 per 3 g, from £29.49 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

6 days at one 3 g dose. The pack holds 17.6 g in total.

How much does BiOptimizers Sleep Breakthrough Capsules cost per 200 mg?

98p per 200 mg, from £29.49 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 200 mg dose. The pack holds 6 g in total.

How much does BiOptimizers Sleep Breakthrough Capsules cost per 100 mg magnesium?

£2.81 per 100 mg magnesium, from £29.49 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

11 days at one 100 mg dose. The pack holds 1.05 g in total.

How much does BiOptimizers Sleep Breakthrough Capsules cost per 1 g?

£4.92 per 1 g, from £29.49 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

6 days at one 1 g dose. The pack holds 6 g in total.

How much does BiOptimizers Sleep Breakthrough Capsules cost per 50 mg?

£20.48 per 50 mg, from £29.49 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

1 day at one 50 mg dose. The pack holds 72 mg in total.

How much does BiOptimizers Sleep Breakthrough Capsules cost per 15 mg zinc?

£9.83 per 15 mg zinc, from £29.49 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

3 days at one 15 mg dose. The pack holds 45 mg in total.

Keep comparing

All magnesiumEvery form, cheapest per 100 mg magnesium firstMagnesium Bisglycinate (glycinate)66 products rankedMagnesium guideWhat it is, why people take it, how the forms differMineralsEverything else we price in this categoryMagnesium price historyEvery magnesium product's price per dose and price historyBuild a basketThe cheapest way to buy several at onceHow we compareWhere every number on this page comes from