---
product_id: 444162146
title: "L-Theanine 400mg from Green Tea - 90 Vegan Capsules - Amino Acid Supplement – Resealable and Recyclable Pouch by Alpha01"
brand: "alpha01"
price: "€ 29.27"
currency: EUR
in_stock: true
reviews_count: 8
category: "Alpha01"
url: https://www.desertcart.hr/products/444162146-l-theanine-400mg-from-green-tea-90-vegan-capsules-amino
store_origin: HR
region: Croatia
---

# Derived from premium green tea extract 400mg pure L-Theanine per capsule Resealable & recyclable pouch packaging L-Theanine 400mg from Green Tea - 90 Vegan Capsules - Amino Acid Supplement – Resealable and Recyclable Pouch by Alpha01

**Brand:** alpha01
**Price:** € 29.27
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your focus and calm—naturally, powerfully, sustainably.

## Quick Answers

- **What is this?** L-Theanine 400mg from Green Tea - 90 Vegan Capsules - Amino Acid Supplement – Resealable and Recyclable Pouch by Alpha01 by alpha01
- **How much does it cost?** € 29.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/444162146-l-theanine-400mg-from-green-tea-90-vegan-capsules-amino)

## Best For

- alpha01 enthusiasts

## Why This Product

- Trusted alpha01 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Optimal 400mg Dosage:** Power-packed L-Theanine for peak mental clarity and calm.
- • **Vegan & Clean Formula:** Non-GMO, gluten-free, dairy-free—pure wellness in every capsule.
- • **Eco-Friendly Packaging:** Sustain your mind and the planet with resealable recyclable pouch.
- • **Natural Green Tea Source:** Experience clean, jitter-free focus from nature’s best.
- • **Stress & Anxiety Support:** Clinically favored for reducing social and work-related stress.

## Overview

Alpha01’s L-Theanine 400mg capsules deliver a potent, natural dose of this amino acid sourced from premium green tea. Designed for professionals seeking enhanced focus, calm, and stress relief without caffeine jitters, this vegan, non-GMO, gluten-free supplement comes in eco-conscious resealable packaging, ensuring purity and convenience for your daily wellness routine.

## Description

Product Description

Review: Feel more awake and concentrated - I have been taking these now for 4 months and i do believe my concentration has improved. I feel more awake at work and able to think. My only issue with these is that my most recent pack seem yo have a smell and taste which they did not have before. It’s not the end of the world but also not overly pleasant but given the effectiveness and cost i will keep buying. I have digestion issues and haven’t seen a difference taking these so i don’t think they cause any issues or irritation personally. I would recommend this brand
Review: Excellent quality and price - Excellent quality, have been taking daily for over a year now and it really works to lower my anxiety especially in social situations and in work

## Features

- HIGH POTENCY FORMULA: Delivers 400mg of pure L-Theanine per serving. This optimal dosage is designed to support your daily wellness routine effectively.
- NATURALLY SOURCED: Derived directly from premium Green Tea extract, this amino acid supplement provides the natural benefits of green tea without the jitters associated with caffeine.
- FOCUS & CALM: L-Theanine is widely recognized for its ability to support mental clarity, focus, and a sense of calm, making it perfect for work, study, or relaxation.
- PURE & CLEAN: Formulated with your health in mind, this supplement is strictly Non-GMO, Vegan, Gluten-Free, Dairy-Free, and contains no artificial preservatives.
- QUALITY ASSURANCE: Manufactured with strict adherence to safety standards to ensure ingredient purity and potency in every capsule.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09886GMHT |
| Age Range Description | Adult |
| Allergen Information | Contains: Gluten Free |
| Benefits | Antioxidant, Brain Health Support, Energy Management, Sleep Support, Stress Relief |
| Best Sellers Rank | 2,209 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 48 in Amino Acid Nutritional Supplements |
| Brand | ALPHA01 |
| Brand Name | ALPHA01 |
| Container Type | Bag |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.3 out of 5 stars 730 Reviews |
| Diet Type | Gluten Free, Halal, Keto, Plant Based, Vegan |
| Dosage Form | Capsule |
| Flavour | Natural |
| Item Dimensions | 16.2 x 7 x 2.1 centimetres |
| Item Form | Capsule |
| Item dimensions L x W x H | 16.2 x 7 x 2.1 centimetres |
| Item form | Capsule |
| Manufacturer | ALPHA01 |
| Manufacturer Part Number | ALP-L-THEANINE-UK |
| Material Features | GMO Free |
| Material Type Free | gluten_free |
| Number of Items | 90 |
| Pill Coating | hypromellose |
| Primary Supplement Type | L-Theanine |
| Primary supplement type | L-Theanine |
| Special Ingredients | L-Theanine, BioPerine® Black Pepper Extract |
| Specific Uses For Product | Brain Health Support Stress Relief |
| Supplement Formulation | Individual Supplement |
| Total Servings Per Container | 45.0 |
| Unit Count | 90.0 count |
| Unit count | 90.0 count |

## Product Details

- **Age range (description):** Adult
- **Brand:** ALPHA01
- **Diet type:** Gluten Free, Halal, Keto, Plant Based, Vegan
- **Flavour:** Natural
- **Item dimensions L x W x H:** 16.2 x 7 x 2.1 centimetres
- **Item form:** Capsule
- **Primary supplement type:** L-Theanine
- **Product benefits:** Antioxidant, Brain Health Support, Energy Management, Sleep Support, Stress Relief
- **Special ingredients:** L-Theanine, BioPerine® Black Pepper Extract
- **Unit count:** 90.0 count

## Images

![L-Theanine 400mg from Green Tea - 90 Vegan Capsules - Amino Acid Supplement – Resealable and Recyclable Pouch by Alpha01 - Image 1](https://m.media-amazon.com/images/I/719tqAk1pcL.jpg)
![L-Theanine 400mg from Green Tea - 90 Vegan Capsules - Amino Acid Supplement – Resealable and Recyclable Pouch by Alpha01 - Image 2](https://m.media-amazon.com/images/I/810BRtlR7wL.jpg)
![L-Theanine 400mg from Green Tea - 90 Vegan Capsules - Amino Acid Supplement – Resealable and Recyclable Pouch by Alpha01 - Image 3](https://m.media-amazon.com/images/I/81EdqwsCOTL.jpg)
![L-Theanine 400mg from Green Tea - 90 Vegan Capsules - Amino Acid Supplement – Resealable and Recyclable Pouch by Alpha01 - Image 4](https://m.media-amazon.com/images/I/81rUXnaKZ6L.jpg)
![L-Theanine 400mg from Green Tea - 90 Vegan Capsules - Amino Acid Supplement – Resealable and Recyclable Pouch by Alpha01 - Image 5](https://m.media-amazon.com/images/I/91mNfstlM6L.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the % of bulking agent ?**
A: Around 20%

## Customer Reviews

### ⭐⭐⭐⭐⭐ Feel more awake and concentrated
*by C***Y on 7 March 2026*

I have been taking these now for 4 months and i do believe my concentration has improved. I feel more awake at work and able to think. My only issue with these is that my most recent pack seem yo have a smell and taste which they did not have before. It’s not the end of the world but also not overly pleasant but given the effectiveness and cost i will keep buying. I have digestion issues and haven’t seen a difference taking these so i don’t think they cause any issues or irritation personally. I would recommend this brand

### ⭐⭐⭐⭐⭐ Excellent quality and price
*by N***0 on 6 May 2026*

Excellent quality, have been taking daily for over a year now and it really works to lower my anxiety especially in social situations and in work

### ⭐⭐⭐⭐⭐ Seem good quality.
*by W***3 on 3 December 2025*

They definitely seem to help with my mind racing away, relaxing me somewhat, and allowing me to have a more peaceful sleep. Definitely worth a go.

## Frequently Bought Together

- L-Theanine 400mg with BioPerine - 120 Vegan Capsules - Highly Bioavailable - Resealable and Recyclable Pouch - 6 Months Supply by Alpha01
- Magnesium Glycinate 3-in-1 Complex - 1800mg Supplements as Bisglycinate, Citrate & Malate 90 Vegan Capsules, Triple High Absorption 384mg Elemental, UK Made
- Fermented L-Tyrosine 500mg with BioPerine - 120 Capsules - Essential Amino Acid Support (120 Day Supply) by Alpha01

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-23*