bulk L-Theanine powder Green Tea Extract supplier

CAS: 3081-61-6

MF: C7H14N2O3

MW: 174.2

EINECS:2 21-379-0

Specification: 99% min L-Theanine powder

Sample: L-Theanine powder Avaliable

Packaging: 1kg/bag, 25kg/drum

Brand: Ausreson

MOQ: 1 kg

Appearance: White powder

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

Last updated: April 2026

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What is L-Theanine Powder?

L-Theanine (gamma-ethylamino-L-glutamic acid) is a unique amino acid that crosses the blood-brain barrier. While capsules are common, pure L-Theanine powder is gaining popularity in 2026 due to its versatility, faster absorption, and "clean label" appeal (no fillers or flow agents).

Top 3 Benefits of L-Theanine for Your Daily Routine

1. The Perfect Caffeine Partner (No More Jitters)

When "stacked" with caffeine, L-Theanine mitigates the negative side effects like increased blood pressure and anxiety. This combination is a favorite among Silicon Valley professionals and European students for sustained productivity.

2. Natural Stress & Anxiety Management

L-Theanine promotes Alpha brain waves, the same state achieved during deep meditation. It helps lower resting heart rate and cortisol levels without the "brain fog" associated with traditional relaxants.

3. Improved Sleep Architecture

While it isn't a "knock-out" pill, taking L-Theanine powder in the evening helps quiet a racing mind, making it easier to fall asleep and improving overall sleep quality so you wake up refreshed.

How to Use L-Theanine Powder

For SEO and E-E-A-T compliance, we recommend the following based on clinical research:

• Standard Dose: 100mg to 400mg per day.

• How to Take: Mix the highly soluble powder into your coffee, smoothie, or a glass of water. It has a mild, slightly umami flavor.

• Safety: Generally recognized as safe (GRAS). However, consult your GP if you are pregnant or on blood pressure medication.

Frequently Asked Questions

Q: Does L-Theanine powder taste bitter?

A: Actually, no. High-quality L-Theanine has a subtle, pleasant "umami" or savory taste, which is why it’s often used in functional beverages to reduce the bitterness of cocoa or tea.

Q: Is L-Theanine legal in the EU and UK?

A: Yes, L-Theanine is widely available as a food supplement. However, for 2026, ensure your supplier provides Natural Tea-Leaf Extracted powder to meet the latest EU "Clean Label" preferences.

Q: How long does it take to work?

A: Most users report feeling a sense of calm within 30–60 minutes. The effects typically last 8 to 12 hours.

Related Products for Your Wellness Stack

To maximize your results, consider binding L-Theanine with these complementary supplements:

1. Magnesium Glycinate: For the ultimate "Stress-Relief" duo.

2. Lion’s Mane Mushroom Powder: For enhanced neuroprotection and memory.

3. Caffeine / Coffee Bean Extract: For the classic "Smart Caffeine" focus stack.

4. Ashwagandha: For long-term cortisol management and hormonal balance.

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