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Home › Amino acids & derivatives › L-Theanine

Pure EncapsulationsAmino acids & derivatives

L-Theanine, 60 capsules

£39.49 for 60 capsules at Healf. That works out at 66p per 200 mg, which ranks it 9th of the 12 L-theanine products we price across 4 UK retailers.

What it really costs, per 200 mg66pOne 200 mg dose is our comparison unit for L-Theanine. It is not a recommendation.
A day66p
A week£4.61
A month£19.75
A year£240.23

At one 200 mg dose a day, this pack lasts 2 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 200 mg = 12 g
  • £39.49 ÷ 12 g × 200 mg = 65.8p per 200 mg
  • A week 65.8p × 7 = £4.61 · a month × 30 = £19.75 · a year × 365 = £240.23
  • 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 L-theanine

All 12, ranked →
L-Theanine 200mg 60 CapsulesHolland & Barrett · 200 mg a serving · £7.00 a month · a pack lasts 2 months23p£13.99View at Holland & Barrett (opens in a new tab)
L-Theanine 200mgHealf · 200 mg a serving · £7.10 a month · a pack lasts 2 months24p£14.19View at Healf (opens in a new tab)
Higher NatureTheanine 100mgVitamin Planet · 100 mg a serving · £14.95 a month · a pack lasts 45 days50p£22.42View at Vitamin Planet (opens in a new tab)
L-TheanineHealf · 200 mg a serving · £18.24 a month · a pack lasts 2 months61p£36.49View at Healf (opens in a new tab)
Higher NatureTheanine 100mgW-Wellness · 100 mg a serving · £19.30 a month · a pack lasts 45 days64p£28.95View at W-Wellness (opens in a new tab)
This productHealf · 200 mg a serving · £19.75 a month · a pack lasts 2 months66pshown above

Switching to the Holland & Barrett pack saves £12.75 a month at the same 200 mg dose.

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

On the label

L-Theanine · L-theanine
200 mg per serving (stated on the label)
Pack
60 capsules · 60 servings · 1 capsule(s) a serving
Cost per serving
66p (60 servings in the pack)
More label details
Claimed on the listing
vegetarian
Sold by
Healf
What the listing says
“60 caps” · “Servings Per Container: 60” · “Serving Size: 1 capsules” · “L-Theanine ; 200 mg”
Ingredients

L-Theanine, Vegetarian Capsule (Cellulose, Water), Hypoallergenic Plant Fiber (Cellulose)

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.

Price history

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

Lowest recorded
£39.491 Oct at Healf
Highest recorded
£51.8515 Oct at W-Wellness
First recorded
£39.491 Oct
Checked on
20 dayssince 1 Oct
  • Healf
  • W-Wellness
Pack price at each check.
  1. First checked at W-Wellness: £51.85
  2. Down at Healf: £48.49 → £39.49 (−19%)
  3. Up at Healf: £39.49 → £48.49 (+23%)
1 earlier entry
  1. First checked at Healf: £39.49

Questions about this product

How much does Pure Encapsulations L-Theanine cost per 200 mg?

66p per 200 mg, from £39.49 for 60 capsules at Healf, checked on 20 October 2026.

Is it the cheapest L-theanine in the UK?

No, it is 9th of 12. L-Theanine at Healf works out at 14p per 200 mg.

How long does one pack last?

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

About Pure Encapsulations

All 135 Pure Encapsulations products, priced per dose

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