L-Theanine Capsules - 200mg

Pure, strong and potent L form of theanine from high grade material

198 reviews

Heavily researched amino acid
Found most commonly in tea leaves
May promote calm without drowsiness
Commonly taken alongside 5 HTP

120 capsules £14.95

Only 12.5p per capsule

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240 capsules (as 2 x 120) £27.95

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Only 11.6p per capsule

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About This Supplement

L-Theanine is an amino acid found predominantly in tea. When you have a stressful moment or a shock a 'cup of tea' one of the first things that come to mind but why? The reason is thought to be L-Theanine which is believed to promote a calming and relaxing influence.

If you are a coffee drinker it's likely that at some point you will have drunk too much and experienced a 'hyper' effect. It is very doubtful that you have ever experienced the same thing with tea even though it contains a lot of caffeine and the reason why is thought to be theanine. It is thought that theanine works to offset caffeine's effect but without causing any drowsiness. It is also a supplement which is not known to be addictive.

Pure, strong and high grade material

Just Vitamins L-Theanine provides 200mg of this high-grade amino acid in a vegetarian capsule.

Product Information

Capsule Size

21.7mm x 7.65mm

Formula

Cautions & Warnings

List of Ingredients

Recommended Intake

Legal Category

P1181-220913

JV180

Customer Reviews for L-Theanine 200mg

The views expressed below are the personal opinion of Just Vitamins customers. Just Vitamins does not endorse these views, nor should they be regarded as health claims or medical advice. All reviews are collected and verified as genuine by a 3rd party called Feefo.

Overall product rating 9.4 / 10 - 198 customers have independently reviewed and recommend L-Theanine from 198 reviews (showing latest 25 reviews)

Review Date

Rating

Review Details

18 May 2025

Service rating: Very good always
Product: Great for improved mental clarity and energy

02 January 2024

Service rating: I was hoping that these tablets would have helped me with my situation. Unfortunately they have made no difference.
Product: In my case they have made no difference, we'll it was worth a try.

22 December 2023

Service rating: Good delivery, communication, and excellent products. Very happy with my purchase.
Product: Well made product. They work for me. Definitely recommend.

04 December 2023

Service rating: Fast and tidy delivery. Use their product over 4 years no complaints.
Product: It does marvels to treat my anxiety and focus.

11 January 2023

Order arrived on time and in good order. Product is as described but I've only been taking it for a short period.

07 November 2022

Very nice package and optimum delivery service

30 August 2022

Good service. Arrived as expected.

21 December 2021

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09 December 2021

Service rating: I have been a customer for years, eveything was always good, however this time I waited for my delivery longer than usual. But I trust the quality of their products. And I like their packaging.
Product: I haven't noticed the results yet (theanine 200 mg but I have high hope)

13 October 2021

Great packaging, fast delivery

07 October 2021

Service rating: Prompt service and no problems with delivery - pouch easily posted through letterbox.
Product: Nothing adverse and helps with sleep and anxiety

23 September 2021

Service rating: Excellent product
Product: It really works! When you take 2 together I can feel i huge difference

22 August 2021

Service rating: Fantastic price, great product. Would give 5 stars but...

Delivery was a few days late even after paying £7 for delivery, so i do not recommend getting that.
Product: Taking 3 of these at once alongside coffee. This counterbalances my Asperger's natural passive-anxiety and the coffee increases my focus for work. Generally you should take 2:1 ratio of L-Theanine to Coffee, but if you have much more passive anxiety then the coffee will increase it. So personally I must do 3:1

18 May 2021

Service rating: Easy website to navigate, fast delivery and excellent products.
Product: I only take one in the evening and find this perfect for calmness and relaxation and then restful sleep. Would highly recommend to anyone feeling a little anxious and needing some support.

08 April 2021

Service rating: Delivery arrived quick enough but the products arrived with short shelf life, that is not acceptable. As for the product I purchased to help with sleep but in fact the opposite happened. I tried for 3 days with Magnesium but after 3 night of absolutely no sleep I gave up.
Product: Does not work for help with sleep, in fact they kept me a wake. Some calming effect but not for me.

06 April 2021

Service rating: Excellent product and delivered promptly. Pouch delivered through the letterbox.
Product: Excellent product to help calm anxiety.

28 March 2021

Friendly attention and on time delivery.

10 February 2021

Delivery was very quick and efficient, I’m a big fan of the packaging as it’s compact, saves me space, and it fit through the letterbox! Customer service was spot on, I had no issues with anything

04 September 2020

Service rating: Excellent service and fantastic prices for top quality products
Product: Amazing product. Recommended to others. Really helping with my anxiety. Helps take the edge off whilst allowing me to stay alert and carry on with my day.

15 August 2020

quick useful email support

24 May 2020

Speedy delivery, fab prices

23 April 2020

Fast delivery. Quality item

17 April 2020

Prompt service and value for money product.

01 April 2020

Good and expedient service.

20 February 2020

Service rating: Great price and excellent fast delivery. Will certainly be buying from them again soon.
Product: Great value for money. This supplement helps with my anxiety