---
product_id: 578056001
title: "Vinco L-Theanine Supplement - 400mg x 120 High Strength L Theanine Capsules - 99%+ Purity - Supports Sleep & Relaxation - Non-GMO & Gluten Free - Made in The UK"
brand: "vinco supplements"
price: "$35.84"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/578056001-vinco-l-theanine-supplement-400mg-x-120-high-strength-l
store_origin: US
region: United States of America
---

# 99%+ purity, Non-GMO & gluten-free 400mg pure L-Theanine per capsule Made in GMP-certified UK facility Vinco L-Theanine Supplement - 400mg x 120 High Strength L Theanine Capsules - 99%+ Purity - Supports Sleep & Relaxation - Non-GMO & Gluten Free - Made in The UK

**Brand:** vinco supplements
**Price:** $35.84
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your calm, sharpen your edge — the smart supplement for the driven millennial.

## Quick Answers

- **What is this?** Vinco L-Theanine Supplement - 400mg x 120 High Strength L Theanine Capsules - 99%+ Purity - Supports Sleep & Relaxation - Non-GMO & Gluten Free - Made in The UK by vinco supplements
- **How much does it cost?** $35.84 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/578056001-vinco-l-theanine-supplement-400mg-x-120-high-strength-l)

## Best For

- vinco supplements enthusiasts

## Why This Product

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

## Key Features

- • **Optimized Absorption:** Enhanced bioavailability ensures you get the maximum calming benefits fast.
- • **Clean & Green Formula:** Crafted in the UK with vegan-friendly, gluten-free, and non-GMO ingredients for pure wellness.
- • **Stress Less, Achieve More:** Supports calmness and relaxation without drowsiness—perfect for busy professionals.
- • **Trusted Quality, Guaranteed:** Produced under strict UK safety standards for your peace of mind.
- • **Laser-Sharp Focus, Naturally:** 400mg of premium L-Theanine to boost mental clarity without jitters.

## Overview

Vinco L-Theanine Supplement delivers 400mg of ultra-pure L-Theanine per capsule, sourced from green tea extract and manufactured in GMP-certified UK facilities. This non-GMO, gluten-free, and vegan-friendly formula supports mental clarity, stress management, and relaxation without causing drowsiness, making it an ideal daily wellness boost for professionals seeking natural focus and calm.

## Description

Vinco L-Theanine Supplement - 400mg x 120 High Strength L Theanine Capsules - 99%+ Purity - Supports Sleep & Relaxation - Non-GMO & Gluten Free - Made in The UK

## Features

- 𝐂𝐥𝐚𝐫𝐢𝐭𝐲 𝐚𝐧𝐝 𝐅𝐨𝐜𝐮𝐬: Experience the power of L-Theanine in its purest form. Our carefully formulated L-Theanine 400mg capsules support mental clarity, helping you stay alert without overstimulation. Sourced from green tea extract, this supplement is a natural way to maintain focus during demanding tasks.
- 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐅𝐨𝐫𝐦𝐮𝐥𝐚: Our L-Theanine capsules are made in Britain’s GMP-certified facilities, ensuring standards of quality. Free from GMOs, artificial fillers, and preservatives, this green tea supplement is also vegan-friendly and gluten-free. Choose a formula that prioritises purity and effectiveness.
- 𝐒𝐮𝐩𝐞𝐫𝐢𝐨𝐫 𝐀𝐛𝐬𝐨𝐫𝐩𝐭𝐢𝐨𝐧: Each serving of our L-Theanine 400mg capsules is optimised for enhanced bioavailability, meaning your body absorbs the key nutrients more efficiently. Unlike standard fatigue supplements, our formula delivers the goodness of green tea capsules in an easy-to-take form.
- 𝐒𝐭𝐫𝐞𝐬𝐬 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Busy schedules and demanding days call for reliable stress relief solutions. Our expertly made L-Theanine supplement helps you stay composed, making it a great addition to your daily wellness routine. Unlike typical sleeping tablets, it promotes calmness without drowsiness.
- 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧: At Vinco Supplements, we prioritise quality and customer experience. Our L-Theanine capsules are produced with care, meeting strict UK safety regulations. Whether you’re exploring GABA supplements UK or seeking stress relief, our formula is designed with your well-being in mind.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Name | L-Theanine Supplement |
| Additives | L-Theanine |
| Allergen Information | Contains: Dairy Free, Gelatin Free, Gluten Free, Lactose Free |
| Units | 120.00 Count |
| Serving Recommendation | Take 1 Capsule Daily |
| Brand | Vinco Supplements |
| Format | Capsule |
| Age Range Description | Adult |
| Material composition | L-Theanine |

## Product Details

- **Brand:** Vinco Supplements
- **Flavour:** Unflavoured
- **Primary supplement type:** L-Theanine
- **Unit count:** 120.00 Count
- **Item form:** Capsule
- **Item weight:** 0.09 Kilograms
- **Item dimensions L x W x H:** 45 x 45 x 96 millimetres
- **Special ingredients:** L-Theanine
- **Product benefits:** Stress Relief
- **Age range (description):** Adult

## Images

![Vinco L-Theanine Supplement - 400mg x 120 High Strength L Theanine Capsules - 99%+ Purity - Supports Sleep & Relaxation - Non-GMO & Gluten Free - Made in The UK - Image 1](https://m.media-amazon.com/images/I/61Vy1JqExNL.jpg)

## Questions & Answers

**Q: What is L-Theanine and how does it support mental clarity?**
A: L-Theanine is a natural compound from green tea that promotes focus and mental clarity without causing overstimulation.

**Q: Is your L-Theanine supplement suitable for vegans and those with dietary restrictions?**
A: Yes, our L-Theanine capsules are vegan-friendly, gluten-free, and free from GMOs, artificial fillers, and preservatives.

**Q: How does L-Theanine help with stress management?**
A: L-Theanine supports relaxation and helps manage stress without causing drowsiness, making it ideal for daily use.

**Q: Where are your L-Theanine supplements manufactured?**
A: Our L-Theanine supplements are crafted in GMP-certified UK facilities to ensure premium quality and safety.

## Frequently Bought Together

- Vinco L-Theanine Supplement - 400mg x 120 High Strength L Theanine Capsules - 99%+ Purity - Supports Sleep & Relaxation - Non-GMO & Gluten Free - Made in The UK
- Vinco Apigenin 100mg Supplement - 120 Sleep Capsules for Better Relaxation, 99%+ Pure Natural Formula - NAD Booster, Apigenin Sleep Supplements, Natural Sleep Aid for Adults - Made in The UK
- Vinco Magtein® Magnesium L-Threonate Supplement - 120 High Strength Magnesium L Threonate Capsules - 2000mg Bioavailable Form of Magnesium per Serving - Non-GMO & Gluten Free – Made in The UK

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-12*