---
product_id: 537160356
title: "L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Made in USA | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules"
brand: "nutraharmony"
price: "R640"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Nutraharmony"
url: https://www.desertcart.co.za/products/537160356-l-theanine-400-mg-l-theanine-stress-relief-extra-strength
store_origin: ZA
region: South Africa
---

# 100% plant-based & vegan 400mg extra strength dose Made in USA, non-GMO & gluten-free L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Made in USA | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules

**Brand:** nutraharmony
**Price:** R640
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your calm, sharpen your focus, and sleep smarter—naturally.

## Quick Answers

- **What is this?** L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Made in USA | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules by nutraharmony
- **How much does it cost?** R640 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/537160356-l-theanine-400-mg-l-theanine-stress-relief-extra-strength)

## Best For

- nutraharmony enthusiasts

## Why This Product

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

## Key Features

- • **Sleep Like a Pro:** Supports deep, restful sleep so you wake up refreshed and ready to conquer.
- • **Clean & Conscious:** Plant-based, vegan, non-GMO, gluten-free—perfect for mindful lifestyles.
- • **Effortless Wellness:** 120 easy-to-swallow capsules to keep calm and carry on, anytime, anywhere.
- • **Calm Your Mind, Own Your Day:** 400mg of pure L-Theanine delivers powerful stress relief and mental clarity.
- • **Trusted Quality, Made in USA:** Crafted with premium ingredients under strict quality standards.

## Overview

L Theanine 400 mg by Nutra Harmony is a premium, extra strength supplement designed to promote relaxation, reduce stress, and improve sleep quality. Made in the USA from 100% plant-based, non-GMO, and gluten-free ingredients, this vegan-friendly formula supports mental clarity and calm without compromising your clean lifestyle. Each bottle contains 120 easy-to-swallow capsules, ideal for busy professionals seeking natural stress relief and enhanced focus.

## Description

desertcart.com: L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Made in USA | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules : Health & Household

Review: Excellent supplement - Great product, great price, easy to swallow and sleep has improved! Everything I wanted in my L-Theanine supplement. I plan on repurchasing for sure.
Review: Great supplement - Helps me to relax and sleep better

## Features

- L Theanine Supplement — Don’t stress & do your best! Sleep well with l theanine 400mg! Provides calming & relaxing effect on the body, supports good sleep, and the ability to deal with stress.
- Calm, Sleep & Relax — L theanine works by encouraging brain-wave activity, which improves concentration by reducing distractions and promoting a more focused state of mind
- 100% Natural Source — L Theanine effectively relaxes and relieves mental and physical tension. It has a natural ability to deal with nervousness and stress-related sleep problems. Found and made from the purest, highest quality green tea!
- Made in the USA — L theanine from NUTRAHARMONY does not contain GMOs; it's dairy-free, gluten-free, nut-free, wheat-free, soy-free, nightshade-free, and sugar-free. L-theanine is a perfect addition to your gluten-free & vegan lifestyle with advanced support and significant effects
- Quality Matters — NUTRAHARMONY ltheanine vitamin is an excellent and effortless choice for improving your health. If you want to share your experience or have questions about l- theanine, message us. Our support team works 24/7. Maintain your health anytime, anywhere with a ltheanine supplement!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0C9N1Q5QS |
| Best Sellers Rank | #5,726 in Health & Household ( See Top 100 in Health & Household ) #74 in Herbal & Nutritional Sleep Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,666) |
| Date First Available  | June 28, 2023 |
| Item model number  | 5 |
| Manufacturer  | Distributed by Nutra Harmony LLC |
| Package Dimensions  | 4.41 x 2.28 x 2.24 inches; 0.01 ounces |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** NUTRAHARMONY
- **Diet Type:** Vegan
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 400 Milligrams
- **Primary Supplement Type:** L-Theanine
- **Product Benefits:** Sleep Support
- **Special Ingredients:** L-Theanine
- **Unit Count:** 120.00 Count

## Images

![L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Made in USA | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules - Image 1](https://m.media-amazon.com/images/I/71C+sNy7HHL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent supplement
*by J***N on February 4, 2026*

Great product, great price, easy to swallow and sleep has improved! Everything I wanted in my L-Theanine supplement. I plan on repurchasing for sure.

### ⭐⭐⭐⭐⭐ Great supplement
*by A***R on February 11, 2026*

Helps me to relax and sleep better

### ⭐⭐⭐⭐⭐ Calm Down
*by M***S on February 14, 2026*

I have used l-theanine in the past as it has a calming effect. Just started using this one and so far I like it. The benefits of L-theanine are great and I like that it is a natural amino acid and not a drug.

## Frequently Bought Together

- L Theanine 400 mg | L-Theanine Stress Relief | Extra Strength Supplement | Made in USA | Relaxation, Sleep & Calm Support | For Men & Women | Plant Based, Non-GMO & Gluten-Free | 120 Vegan Capsules
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**Shop now:** [https://www.desertcart.co.za/products/537160356-l-theanine-400-mg-l-theanine-stress-relief-extra-strength](https://www.desertcart.co.za/products/537160356-l-theanine-400-mg-l-theanine-stress-relief-extra-strength)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-04*