---
product_id: 490515312
title: "L-Theanine - 400 mg as Suntheanine - Relaxation, Focus & Stress Support - Amino Acid Supplement - Non-Drowsy - Vegetarian, Non-GMO & Gluten-Free - 120 Capsules"
brand: "xymogen"
price: "$184.61"
currency: USD
in_stock: true
reviews_count: 9
category: "Xymogen"
url: https://www.desertcart.us/products/490515312-l-theanine-400-mg-as-suntheanine-relaxation-focus-and-stress
store_origin: US
region: United States of America
---

# Non-drowsy focus & stress support Vegetarian, Non-GMO & Gluten-Free purity 400 mg Suntheanine L-Theanine per serving L-Theanine - 400 mg as Suntheanine - Relaxation, Focus & Stress Support - Amino Acid Supplement - Non-Drowsy - Vegetarian, Non-GMO & Gluten-Free - 120 Capsules

**Brand:** xymogen
**Price:** $184.61
**Availability:** ✅ In Stock

## Summary

> 🧘‍♂️ Elevate your calm, sharpen your edge — stay ahead without the fog!

## Quick Answers

- **What is this?** L-Theanine - 400 mg as Suntheanine - Relaxation, Focus & Stress Support - Amino Acid Supplement - Non-Drowsy - Vegetarian, Non-GMO & Gluten-Free - 120 Capsules by xymogen
- **How much does it cost?** $184.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/490515312-l-theanine-400-mg-as-suntheanine-relaxation-focus-and-stress)

## Best For

- xymogen enthusiasts

## Why This Product

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

## Key Features

- • **Clean & Conscious:** Free from gluten, GMOs, dairy, soy, corn, peanuts, egg, and shellfish—ideal for diverse dietary lifestyles.
- • **Calm Focus, No Crash:** Experience sustained mental clarity without drowsiness, perfect for high-stakes workdays.
- • **Trusted by Professionals:** Backed by XYMOGEN’s evidence-based integrative health approach, empowering your wellness journey.
- • **Enhanced Absorption Blend:** Includes medium-chain triglyceride oil and ascorbyl palmitate for superior stability and bioavailability.
- • **Premium Suntheanine Formula:** 400 mg of clinically studied L-Theanine to help manage stress and enhance concentration.

## Overview

XYMOGEN L-Theanine delivers a potent 400 mg dose of Suntheanine per capsule, supporting relaxation and focus without causing drowsiness. This vegetarian, non-GMO, and gluten-free supplement is formulated with added absorption enhancers and free from common allergens, making it a clean, effective choice for stress management and cognitive support. With 120 capsules per bottle, it’s designed for daily use by professionals seeking balanced mental performance.

## Description

Buy XYMOGEN L-Theanine - 400 mg as Suntheanine - Relaxation, Focus & Stress Support - Amino Acid Supplement - Non-Drowsy - Vegetarian, Non-GMO & Gluten Free - 120 Capsules on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Worth the price for this supplement - I noticed a difference within the first 3 days of taking this. I went from dragging and lagging behind to wide awake, alert and focused. I take 2 with a cup of coffee in the morning.
Review: Good - Good

## Features

- Relaxation and Focus Support: XYMOGEN L-Theanine vegetarian capsules support calm without drowsiness and aid concentration support*
- Formula Featuring Suntheanine: Each serving delivers 400 mg amino acid L-theanine as Suntheanine, known for stress management support and nervous irritability support*
- Thoughtfully Chosen Components: This amino acid supplement includes medium-chain triglyceride oil and ascorbyl palmitate for added stability and absorption
- Allergen-Conscious Purity: This supplement is free from gluten, GMOs, dairy, soy, corn, peanuts, egg, and shellfish to fit seamlessly into a variety of dietary lifestyles
- XYMOGEN champions integrative health, empowering people and healthcare professionals with evidence-based formulations

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EZ8Q4WQ |
| ASIN  | B00EZ8Q4WQ |
| Age Range Description | Adult |
| Best Sellers Rank | #70,126 in Health & Household ( See Top 100 in Health & Household ) #1,348 in Amino Acid Nutritional Supplements |
| Brand Name | XYMOGEN |
| Color | Red |
| Container Type | Bottle |
| Customer Reviews | 4.7 4.7 out of 5 stars (75) |
| Date First Available  | October 12, 2022 |
| Diet Type | Gluten Free, Vegetarian |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions | 1.89 x 2.05 x 4.21 inches |
| Item Form | Capsule |
| Item Weight | 2.72 ounces |
| Item model number  | 300000025 |
| Manufacturer | Xymogen |
| Manufacturer  | Xymogen |
| Manufacturer Part Number | 300000025 |
| Material Features | Gluten Free |
| Material Type Free | Dairy Free, GMO Free, No Artificial Colors, Tree Nuts Free, wheat Free |
| Model Number | 300000025 |
| Number of Items | 1 |
| Primary Supplement Type | L-Theanine |
| Product Benefits | Brain Health Support |
| Product Dimensions  | 1.89 x 2.05 x 4.21 inches; 2.72 ounces |
| Special Ingredients | L-Theanine |
| Specific Uses For Product | Inside; Amateur |
| Total Servings Per Container | 120 |
| UPC | 871149002398 |
| Unit Count | 120 Count |

## Product Details

- **Brand:** XYMOGEN
- **Diet Type:** Gluten Free, Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 2.72 ounces
- **Item dimensions L x W x H:** 1.89 x 2.05 x 4.21 inches
- **Primary Supplement Type:** L-Theanine
- **Product Benefits:** Brain Health Support
- **Special Ingredients:** L-Theanine
- **Unit Count:** 120 Count

## Images

![L-Theanine - 400 mg as Suntheanine - Relaxation, Focus & Stress Support - Amino Acid Supplement - Non-Drowsy - Vegetarian, Non-GMO & Gluten-Free - 120 Capsules - Image 1](https://m.media-amazon.com/images/I/51NpJDvbrZL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth the price for this supplement
*by N***E on February 1, 2026*

I noticed a difference within the first 3 days of taking this. I went from dragging and lagging behind to wide awake, alert and focused. I take 2 with a cup of coffee in the morning.

### ⭐⭐⭐⭐⭐ Good
*by H***Y on January 18, 2026*

Good

### ⭐⭐⭐⭐⭐ Great.!
*by K***A on September 11, 2025*

Great Product

## Frequently Bought Together

- XYMOGEN L-Theanine - Patented Suntheanine L theanine 400mg Per Serving - Amino Acid Supplement to Support Calm + Relaxation Without Drowsiness, Liver Health (120 Capsules)
- XYMOGEN OptiMag Neuro - Magnesium L Threonate Supplement with Chelated Magnesium Lysinate Glycinate - Support Brain Health & Relaxation (90 Capsules)
- XYMOGEN K2-D3 5000 - Vitamin D3 K2 - Bioavailable Vitamin D 5000 IU (Cholecalciferol) with MK-7 - Heart, Arterial, Bone Health + Immune Support Supplement (120 Capsules)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-11*