---
product_id: 14994940
title: "L-Theanine"
brand: "superior labs"
price: "$1256"
currency: MXN
in_stock: null
reviews_count: 8
url: https://www.desertcart.mx/products/14994940-l-theanine
store_origin: MX
region: Mexico
---

# Zero synthetic additives or fillers Third-party audited, premium quality 250 mg pure L-Theanine per capsule L-Theanine

**Brand:** superior labs
**Price:** $1256
**Availability:** ❌ Out of Stock

## Summary

> 🧘‍♂️ Elevate your calm, sharpen your focus—stress less, live more.

## Quick Answers

- **What is this?** L-Theanine by superior labs
- **How much does it cost?** $1256 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/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

- • **Pure & Potent:** Crafted with absolute purity—no fillers, no heavy metals, just clean, effective ingredients.
- • **Calm Without Compromise:** Promotes relaxation and stress relief without drowsiness, so you stay sharp and balanced all day.
- • **Focused Mind, Every Time:** Supports mental clarity and focus, perfect for powering through your busiest workdays.
- • **Trusted Quality Assurance:** Manufactured in rigorously audited facilities to guarantee top-tier supplement standards.
- • **Risk-Free Wellness Upgrade:** Over a decade of customer satisfaction with hassle-free refunds if you’re not completely happy.

## Overview

Superior Labs L-Theanine delivers 250 mg of pure, non-GMO L-Theanine per capsule, designed to promote relaxation and reduce everyday stress without causing drowsiness. Manufactured in third-party audited facilities, this supplement contains zero synthetic additives or fillers, ensuring premium quality and high absorption. With 90 vegetarian capsules per bottle, it supports a calm, focused mind and healthy sleep patterns, making it a trusted choice for professionals seeking natural stress support.

## Description

Buy Superior Labs L-Theanine 250 mg Capsules, Non-GMO, Promotes Non Drowsy Relaxation & Helps Ease Everyday Stress, Supports Healthy Sleep, Promotes a Focused Mind, High Absorption, 90 Veg Caps on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Great product - Great product for helping you calm down and relax.
Review: Works - Works great

## 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 |
| Best Sellers Rank | #116,975 in Health & Household ( See Top 100 in Health & Household ) #1,055 in Herbal & Nutritional Sleep Supplements #5,309 in Blended Vitamin & Mineral Supplements |
| Customer Reviews | 4.4 4.4 out of 5 stars (193) |
| Date First Available  | March 24, 2015 |
| Is Discontinued By Manufacturer  | No |
| Manufacturer  | Superior Labs |
| Package Dimensions  | 4.84 x 2.28 x 2.24 inches; 0.01 ounces |

## 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/51odPY309NL.jpg)

## Customer Reviews

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

Great product for helping you calm down and relax.

### ⭐⭐⭐⭐⭐ Works
*by J***N on October 16, 2025*

Works great

### ⭐⭐⭐⭐ NO SLEEP BENEFITS FOR ME - BUT GREAT HELP WITH COGNITIVE FUNCTIONING DURING THE DAY
*by M***H on July 29, 2016*

Friends of a friend of mine highly recommended L-Theanine for sleep. They had run the gamut with sleeping pills and wanted something that worked well, without side effects. I went to Amazon and read the reviews; Superior Labs' reviews were the best, so I went with their formula. Having suffered from chronic fatigue syndrome for 30 years--and having built up a tolerance to all sleeping pills--I was desperate. A couple of weeks ago, my bottle arrived. I took one pill at 8pm (standard time for me with nighttime meds). However, it worked in reverse and was giving me energy! Thought my mind was playing tricks on me, so to speak, so 4-1/2 hours later, I took another Theanine and was up the entire night! My sleeping issue has not been resolved, and between natural products, OTC pills and prescription drugs, it seems like I've tried everything and have become immune. If anyone reading this has some good suggestions, please feel free to share. On the flip side, after reading the reviews and the label on the bottle more carefully, I realized Theanine might help me with brain fog and drowsiness because I am so sleep-deprived and cognitively stressed. So the next morning after have tried two of these for sleep, I took one at about 9am and have consistently been doing so for about 10 days now. It absolutely does make a difference, so I have something wonderful to assist me during the daytime hours - and that is a huge help. I will be a customer for life!!!!

## 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.mx/products/14994940-l-theanine](https://www.desertcart.mx/products/14994940-l-theanine)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-01-24*