---
product_id: 14994940
title: "L-Theanine"
brand: "superior labs"
price: "£30.13"
currency: GBP
in_stock: true
reviews_count: 8
category: "Superior Labs"
url: https://www.desertcart.co.uk/products/14994940-l-theanine
store_origin: GB
region: United Kingdom
---

# Non-GMO, zero synthetic additives 250 mg pure L-Theanine per capsule Supports healthy sleep & non-drowsy relaxation L-Theanine

**Brand:** superior labs
**Price:** £30.13
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your focus and calm—because your mind deserves the best.

## Quick Answers

- **What is this?** L-Theanine by superior labs
- **How much does it cost?** £30.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/14994940-l-theanine)

## Best For

- superior labs enthusiasts

## Why This Product

- Trusted superior labs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Focused Calm, No Crash:** Promotes relaxation without drowsiness so you stay sharp all day.
- • **Pure Power, Zero Fillers:** Crafted with absolute purity—no fillers, additives, or heavy metals.
- • **Stress Less, Achieve More:** Eases everyday stress to keep your mind clear and productive.
- • **Trusted Quality, Risk-Free:** Third-party tested with a hassle-free satisfaction guarantee.
- • **Sleep Smart, Wake Refreshed:** Supports healthy sleep cycles for rejuvenated mornings.

## Overview

Superior Labs L-Theanine 250 mg capsules deliver a potent, pure amino acid supplement designed to promote non-drowsy relaxation, reduce everyday stress, and support healthy sleep. Manufactured in rigorously audited facilities, these 90 vegan capsules are non-GMO and free from synthetic additives, ensuring premium quality for professionals seeking mental clarity and calm.

## Description

Our Best Selling Formula Visit the Store Our Best Selling Formula Visit the Store

Review: Great product - Great product for helping you calm down and relax.
Review: L-Theanine is great for calm and focus- and could get you off those ADHD meds - Originally I was researching a product to help my house cats with tension and fighting. The vet recommended a very high dollar food, and after reading the ingredients, I opted out of that. I talked to our local health food store guru, who handed me a bottle of L-Theanine. He uses it for road trips for his dogs. It took me a week or so to get the dosage correct, and we are having great results for the felines. The 5 of them are not fighting each other for nap space or food or attention. And after seeing the calm change in the cats, and reading more about L-Theanine, I decided to try it for myself. I am getting amazing results!! I am more calm. I am able to think faster and with more clarity. I sleep better. As an added side benefit, I appear to be losing my taste for sweets. I read about that in body builder information, but was really surprised to find it was happening for me!! If you are reading about this amino after someone mentioned it might get you off anti depressants or ADHD meds, please read up, and find out!!

## Features

- HEALTHY MOOD, RELAXATION, CALMING - L-Theanine has been shown to effectively promote relaxation without inducing drowsiness, and relieve mental and physical tension.*
- STRESS SUPPORT - Supports a calm, focused mind and helps ease everyday stress.
- ABSOLUTE PURITY - ZERO SYNTHETIC ADDITIVES, FILLERS, HEAVY METALS, ADULTERANTS - You will never see unnecessary additives such as stearates, dioxides, glycerides or fillers other brands use to make manufacturing cheaper, faster and easier.
- UNQUESTIONABLE QUALITY - Our products are manufactured in facilities that undergo rigorous third-party audits to ensure the highest standards of quality. This strict quality assurance process is designed to meet and exceed industry standards, ensuring that our products are of the highest caliber supplements in the market place.
- NO RISK AND NO HASSLE - For over a decade, we have been delighting desertcart customers. If you are not satisfied with the benefits, results, or are unsatisfied with the product in any other way, please contact us and we'll gladly refund your money. That's it - no questions, no hassle, no risk. ​

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00V5I68V6 |
| Age Range Description | Adult |
| Best Sellers Rank | #95,956 in Health & Household ( See Top 100 in Health & Household ) #887 in Herbal & Nutritional Sleep Supplements #4,085 in Blended Vitamin & Mineral Supplements |
| Brand | Superior Labs |
| Brand Name | Superior Labs |
| Color | A931 |
| Container Type | Bottle |
| Customer Reviews | 4.5 out of 5 stars 201 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Item Form | Capsule |
| Item Weight | 0.01 Ounces |
| Manufacturer | Superior Labs |
| Manufacturer Part Number | 8560079 |
| Material Features | GMO Free |
| Number of Items | 1 |
| Primary Supplement Type | Amino Acid |
| Product Benefits | Relaxation |
| Special Ingredients | L-Theanine |
| UPC | 850569006193 |
| Unit Count | 90 Count |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Superior Labs
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 0.01 Ounces
- **Primary Supplement Type:** Amino Acid
- **Product Benefits:** Relaxation
- **Special Ingredients:** L-Theanine
- **Unit Count:** 90 Count

## Images

![L-Theanine - Image 1](https://m.media-amazon.com/images/I/51gpxaOR2GL.jpg)
![L-Theanine - Image 2](https://m.media-amazon.com/images/I/71YuAJG6zwL.jpg)
![L-Theanine - Image 3](https://m.media-amazon.com/images/I/61ulE0PC1EL.jpg)
![L-Theanine - Image 4](https://m.media-amazon.com/images/I/61KBnTQ-PAL.jpg)
![L-Theanine - Image 5](https://m.media-amazon.com/images/I/61Ut7KXdeyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by E***E on December 17, 2025*

Great product for helping you calm down and relax.

### ⭐⭐⭐⭐⭐ L-Theanine is great for calm and focus- and could get you off those ADHD meds
*by J***H on June 27, 2016*

Originally I was researching a product to help my house cats with tension and fighting. The vet recommended a very high dollar food, and after reading the ingredients, I opted out of that. I talked to our local health food store guru, who handed me a bottle of L-Theanine. He uses it for road trips for his dogs. It took me a week or so to get the dosage correct, and we are having great results for the felines. The 5 of them are not fighting each other for nap space or food or attention. And after seeing the calm change in the cats, and reading more about L-Theanine, I decided to try it for myself. I am getting amazing results!! I am more calm. I am able to think faster and with more clarity. I sleep better. As an added side benefit, I appear to be losing my taste for sweets. I read about that in body builder information, but was really surprised to find it was happening for me!! If you are reading about this amino after someone mentioned it might get you off anti depressants or ADHD meds, please read up, and find out!!

### ⭐⭐⭐⭐⭐ Helped with sleep
*by R***C on August 27, 2025*

Found it helped to assist in getting asleep with no groggy feeling when waking up

## Frequently Bought Together

- Superior Labs - Pure L-Theanine Non-GMO, No Additives - 250mg, 90 Vegetable Capsules - Powerful Formula for Healthy Sleep and Mood - Dietary Supplement for Calming and ​Relaxation
- Superior Labs – Pure L-Tryptophan – 500mg, 120 Vegetable Capsules – Non-GMO Dietary Supplement for Restful Sleep & Relaxation – Supports Feelings of Well Being and Healthy Circulation Circulation
- Superior Labs – Pure Natural L-Tyrosine NonGMO – 500 mg, 120 Vegetable Capsules – Supports Mental Clarity – Promotes Alertness – Boosts Energy – Dietary Supplement for Calming and Relaxation

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**Shop now:** [https://www.desertcart.co.uk/products/14994940-l-theanine](https://www.desertcart.co.uk/products/14994940-l-theanine)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-07-05*