---
product_id: 45038209
title: "Pure Science L-Theanine 400 mg - Cognitive Support, Improves Mental Performance and Mood - 50 Vegetarian Capsules by Pure Science Supplements"
brand: "pure science supplements"
price: "¥12916"
currency: JPY
in_stock: true
category: "Health and Beauty"
url: https://www.desertcart.jp/products/45038209-pure-science-l-theanine-400-mg-cognitive-support-improves-mental
store_origin: JP
region: Japan
---

# Pure Science L-Theanine 400 mg - Cognitive Support, Improves Mental Performance and Mood - 50 Vegetarian Capsules by Pure Science Supplements

**Brand:** pure science supplements
**Price:** ¥12916
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Pure Science L-Theanine 400 mg - Cognitive Support, Improves Mental Performance and Mood - 50 Vegetarian Capsules by Pure Science Supplements by pure science supplements
- **How much does it cost?** ¥12916 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/45038209-pure-science-l-theanine-400-mg-cognitive-support-improves-mental)

## Best For

- pure science supplements enthusiasts

## Why This Product

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

## Description

BOOSTS COGNITION AND MENTAL PERFORMANCE: L theanine supplement promotes the generation of alpha waves, known to accompany periods of intense creativity and intense mental focus. Due to L-Theanine's calming effect, it can help you concentrate better, improve mood and focus on the purpose you have for the day - whether you intend to relax or be productive.;CALMS THE MIND: L-Theanine 400mg increases the production of GABA, an amino acid and neurotransmitter, which works to inhibit other neurotransmitters that produce fight-or-flight responses, resulting in calming the mind and body.;REDUCES STRESS AND PROMOTES FEELINGS OF WELL-BEING: L theanine capsules limit the neurochemicals which cause stress reactions. It helps ease negative emotions and stress caused by unregulated neurotransmitters and hormonal activity in the brain and body, thus, promoting a natural feeling of well-being.;GOOD MANUFACTURING PRACTICES CERTIFIED: Produced by GMP certified facilities with the highest manufacturing and sourcing standards of Pure Science. 'Rooted in Science, Backed by Research' as its motto, Pure Science Supplements focuses on producing the best and safest products for our customers to achieve greater vitality in mind and body by using only the best raw materials obtained through rigorous research.;MONEY-BACK GUARANTEE: As we are confident of the efficacy of Pure Science L-theanine vegan capsules, all purchases are backed by a 100% money-back guarantee should you be unsatisfied. Our products are potent for 2 years from manufacture date.

## Features

- Pure Science L-Theanine Supplement 400 mg - Supports Cognition, Improves Mental Performance and Mood - 50 Vegetarian Capsules

## Images

![Pure Science L-Theanine 400 mg - Cognitive Support, Improves Mental Performance and Mood - 50 Vegetarian Capsules by Pure Science Supplements - Image 1](https://images-na.ssl-images-amazon.com/images/I/41OUdelDIwL.jpg)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-16*