ZenBiome Sleep, 30 capsules
£58.80 for 30 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.
At one 200 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
L-Theanine
- Servings: 30 ÷ 1 per serving = 30
- In the pack: 30 × 200 mg = 6 g
- £58.80 ÷ 6 g × 200 mg = £1.96 per 200 mg
- A week £1.96 × 7 = £13.72 · a month × 30 = £58.80 · a year × 365 = £715.40
- Amount per serving: stated on the label.
Lemon balm
- Servings: 30 ÷ 1 per serving = 30
- In the pack: 30 × 200 mg = 6 g
- £58.80 ÷ 6 g × 500 mg = £4.90 per 500 mg
- A week £4.90 × 7 = £34.30 · a month × 30 = £147.00 · a year × 365 = £1788.50
- Amount per serving: extract weight 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: L-theanine
All 12, ranked →
Ranked purely by price per 200 mg. 70 combination products also contain L-Theanine.
How it compares: lemon balm
Compare every product in this form →
Ranked purely by price per 500 mg. 24 combination products also contain lemon balm.
On the label
- L-Theanine · L-theanine
- 200 mg per serving (stated on the label)
- Lemon balm · Lemon balm
- 200 mg per serving (extract weight stated on the label)
- Pack
- 30 capsules · 30 servings · 1 capsule(s) a serving
- Cost per serving
- £1.96 (30 servings in the pack)
More label details
- Sold by
- Healf
- What the listing says
- “30 caps” · “Servings Per Container: 30” · “Serving Size: 1 Capsule” · “L-Theanine ; 200 mg”
Ingredients
Lemon Balm Leaf Extract (Melissa officinalis L.), L-Theanine, Bifidobacterium longum 1714™ (5B CFU‡), Cellulose, Vegetable Capsule (Cellulose and Water)
From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
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One 200 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: £58.80.
“Order by” allows 3 working days’ delivery from Healf and your spare days.
Price history
3 price changes since 1 October 2026. Checked on 20 days, most recently 20 October 2026.
- Lowest recorded
- £44.491 Oct
- Highest recorded
- £58.809 Oct
- First recorded
- £44.491 Oct
- Checked on
- 20 dayssince 1 Oct
- Up at Healf: £47.49 → £58.80 (+24%)
- Down at Healf: £58.80 → £47.49 (−19%)
- Up at Healf: £44.49 → £58.80 (+32%)
1 earlier entry
- First checked at Healf: £44.49
Questions about this product
How much does Microbiome Labs ZenBiome Sleep cost per 200 mg?
£1.96 per 200 mg, from £58.80 for 30 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 Microbiome Labs ZenBiome Sleep cost per 500 mg?
£4.90 per 500 mg, from £58.80 for 30 capsules at Healf, checked on 20 October 2026.
How long does one pack last?
12 days at one 500 mg dose. The pack holds 6 g in total.