---
product_id: 17590198
title: "Klaire Labs L-Theanine - 100mg Suntheanine to Promote Promote Relaxation (60 Capsules)"
brand: "sfi health"
price: "€ 60.49"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sfi Health"
url: https://www.desertcart.gr/products/17590198-klaire-labs-l-theanine-100mg-suntheanine-to-promote-promote-relaxation
store_origin: GR
region: Greece
---

# 100mg pure Suntheanine L-Theanine Hypoallergenic & free from 9 common allergens Supports serotonin, dopamine & norepinephrine Klaire Labs L-Theanine - 100mg Suntheanine to Promote Promote Relaxation (60 Capsules)

**Brand:** sfi health
**Price:** € 60.49
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your calm—relax smarter, not harder.

## Quick Answers

- **What is this?** Klaire Labs L-Theanine - 100mg Suntheanine to Promote Promote Relaxation (60 Capsules) by sfi health
- **How much does it cost?** € 60.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/17590198-klaire-labs-l-theanine-100mg-suntheanine-to-promote-promote-relaxation)

## Best For

- sfi health enthusiasts

## Why This Product

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

## Key Features

- • **Allergy-Safe Formula:** Free from milk, gluten, soy, nuts, and more—ideal for sensitive lifestyles.
- • **Calm Without Compromise:** Promotes deep relaxation without drowsiness, perfect for busy minds.
- • **Neurotransmitter Harmony:** Supports balanced brain chemistry by modulating key neurotransmitters.
- • **Clinically Patented Purity:** Suntheanine’s patented process ensures premium, bioavailable L-theanine.
- • **Practitioner-Trusted Since 1969:** Backed by decades of healthcare expertise for reliable wellness support.

## Overview

SFI Health Klaire Labs L-Theanine delivers 100mg of Suntheanine, a patented pure form of L-theanine derived from green tea, designed to promote relaxation without causing drowsiness. This hypoallergenic supplement supports neurotransmitter balance by influencing serotonin, dopamine, and norepinephrine levels. Trusted by healthcare practitioners since 1969, it’s free from common allergens and artificial additives, making it a clean, effective choice for managing stress and anxiety.

## Description

L-theanine, a unique amino acid compound found in green tea, is noted for its calming benefits.* Suntheanine brand pure L-theanine is produced through a patented manufacturing process. Studies with Suntheanine show it can promote relaxation without drowsiness.* Three Brands Become One: Since 1969, Klaire Labs has been dedicated to developing clean, efficacious nutritional supplements to ensure optimal outcomes for even the most sensitive individuals. This enduring commitment to quality is at the root of the unification with sister brands ProThera and Complementary Prescriptions. These three brands have unified with a modernized look based on the legacy Klaire Labs logo.

Review: Helps my anxiety a lot - Really great quality. I find it working better than the last bend I used. I take one at night and one again in the morning. Along with my other meditations it helps my anxiety a lot!
Review: Subtle relaxation - A supplement for relaxation is hard to find. I have used this one in other brands and can't say if I noticed much change in my mood. I now take this brand at night time to help settle down. I can say while the effect is subtle, it does reduce anxiousness and I have been able to sleep through the nights better. I think it is a bit pricey over other brands, but this one actually works. Reordering.

## Features

- Promote Relaxation - L-theanine is a unique amino acid compound found in green tea, and is noted for its calming benefits.*
- Suntheanine Pure L-Theanine - Suntheanine brand pure L-theanine is produced through a patented manufacturing process. Studies with Suntheanine show it may promote relaxation without drowsiness.*
- Neurotransmitter Support - L-theanine has been studied for its ability to reduce glutamate uptake and support the body's serotonin, dopamine, and norepinephrine excretion.*
- Hypoallergenic* - Keeping sensitives in mind, this product is free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, and yeast. Contains no artificial colors, flavors, or preservatives.
- Practitioner Trusted - Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B00JUZZZ10 |
| Best Sellers Rank | #83,319 in Health & Household ( See Top 100 in Health & Household ) #3,672 in Blended Vitamin & Mineral Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (98) |
| Date First Available  | July 30, 2014 |
| Manufacturer  | SFI Health |
| Product Dimensions  | 3 x 3 x 3 inches; 0.8 ounces |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** SFI Health
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 0.05 Pounds
- **Item dimensions L x W x H:** 3 x 3 x 3 inches
- **Number of Items:** 1
- **Package Information:** Bottle
- **Product Benefits:** Hypoallergenic,Relaxation
- **Unit Count:** 60 Count

## Images

![Klaire Labs L-Theanine - 100mg Suntheanine to Promote Promote Relaxation (60 Capsules) - Image 1](https://m.media-amazon.com/images/I/61dofa66V9L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Helps my anxiety a lot
*by R***S on August 31, 2025*

Really great quality. I find it working better than the last bend I used. I take one at night and one again in the morning. Along with my other meditations it helps my anxiety a lot!

### ⭐⭐⭐⭐⭐ Subtle relaxation
*by S***N on March 1, 2025*

A supplement for relaxation is hard to find. I have used this one in other brands and can't say if I noticed much change in my mood. I now take this brand at night time to help settle down. I can say while the effect is subtle, it does reduce anxiousness and I have been able to sleep through the nights better. I think it is a bit pricey over other brands, but this one actually works. Reordering.

### ⭐⭐⭐⭐⭐ Wonderful supplement
*by A***P on August 29, 2024*

My son has been taking these for about a year and we have seen a huge difference. His focus has really improved. Really great natural solution for focus issues.

## Frequently Bought Together

- Klaire Labs L-Theanine - 100mg Suntheanine to Promote Promote Relaxation (60 Capsules)
- Klaire Labs Magnesium Glycinate Complex - Chelated Magnesium Blend for Optimal Absorption - Supports Healthy Bones, Muscles & Energy Levels - Gentle on Digestion (100 Capsules)
- Klaire Labs GABA - 420 Milligrams Gamma-Aminobutyric Acid, Neurotransmitter to Support Calm & Mood (60 Capsules)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-31*