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Pickup is available at Brain Balance office, usually ready within 1 hour

Free shipping within NL on orders over €40.

Free pill box when spending from €150 on supplements (add the pill box to the shopping cart yourself, not in combination with other discounts)





  • 30 capsules
  • €0.80 per dose
  • Average dosage 10-30 days

What is L-theanine?

L-Theanine is a patented form of the amino acid theanine. Like GABA, theanine is a nonproteinogenic amino acid. In terms of structure, it is very similar to glutamine.

Theanine is found naturally in the leaves of teas such as black, green and especially white tea. It is largely responsible for the characteristic taste of tea. The amount of theanine contained in a cup of tea depends on the type of tea used.

Theanine is available in supplement form as L-theanine and Suntheanine®. This supplement is a 100% pure L-theanine isomer. The opposite enantiomer, D-theanine, does not occur in nature.

L-Theanine is internationally protected by more than 40 different patents and guarantees theanine extract of consistent quality and quantity. For this, L-theanine has been awarded various prizes worldwide.


1-3 capsule(s) daily with meals. Adhere to the recommended dosage.
Time of ingestion: with meals.

Ingredients and composition

Magnesium bisglycinate, Magnesium, L-theanine, Natural Nu-flow, K-Caps HPMC Size 3 Natural

Contains no gluten, shellfish, eggs, fish, peanuts, soy, milk, tree nuts, celery, mustard, sesame seed, sulfur dioxide, sulfite, lupin and mollusks.

Composition per dose - 1 capsule
Magnesium (2.75 mg) - 0.7% RI
L-theanine (100.0 mg) - *

Safety, medication and packaging


  • Keep out of reach and sight of young children.
  • Note: Are you pregnant? Check here whether you can take the supplements during pregnancy and/or breastfeeding.
  • Supplements are a supplement to a varied diet, not a substitute.
  • Unfortunately, due to legislation surrounding supplements, we are not allowed to provide (complete) information about this product. For more information we refer you to a knowledge institute for orthomolecular therapy

Medication Use
Please note: Do you have chronic illnesses and/or are you taking medication? Consult supplement use with your therapist and/or physician.

30 vegetarian capsules in BPA-free glass container. In addition to L-theanine, this product contains the natural bulking agents Nu-FLOW®. All ingredients in this supplement are in 100% vegetarian capsules (from HPMC) and are packaged in durable BPA-free glass instead of plastic.

KAG no: 4230-0421-7919

Store dry, dark and at room temperature (15-25 °C).

Still have questions?

Want help choosing? Then our supplement advice can be requested here for free*.

Do you have questions about this supplement? If so, please contact us at:


Customer Reviews

Based on 4 reviews

Gives peace of mind

More peace

More peace of mind and therefore better sleep

Less pressure in my head

I take L Theanine before going to sleep.
I take it before I go to sleep, so about an hour before I go to sleep, along with Magnesium Bysglycinate.
I fall asleep quickly and when I wake up in the middle of the night I am not immediately "on".
There is peace in my mind and I fall back asleep peacefully.
I stopped for a month to notice the difference and it was obvious, because I slept badly again and my head was busy again.

Black D.
More focus

I tried this supplement because I easily lose focus during work. Every morning before work I took this supplement during breakfast, and I noticed I had more focus!

Supplements advice needed?

Joyce is an Orthomolecular Therapist and in training to become an Orthomolecular Epigenetic Therapist. Her passion for the profession arose several years ago after she herself developed health issues. During that time she came to understand that everything in the body is interconnected, and that lifestyle has a lot of influence on this. She lovingly helps people to reconnect with themselves. You can contact Joyce for:

- Supplements advice both by phone and email
- Advice and purchase of the supplements at our office

Frequently Asked Questions

Where do you deliver?

We deliver in the Netherlands, Belgium, Germany and France. Would you like to order something and have it delivered to another country? Then contact us for the possibilities!  

When will my order be shipped?

For orders placed before noon, we try to process and ship the same day. So delivery will usually be 1-2 business days later. Do you place an order over the weekend? Then we will process it the next business day.

We ship with PostNL and upon shipment you will receive a track & trace code from us so you can track your package.

If you are not at home, the parcel will be offered again. It will then be delivered to a pick-up location.

What are the shipping costs?

Within the Netherlands we use 2 different shipping rates €4,95 for a package €2,95 for products that fit through the mailbox, such as books. FREE shipping for orders over €40,-.

In Belgium, shipping costs are €4.95 for a book and €6.95 for a package.

In Europe, shipping costs are €12.95. 

Outside Europe, shipping costs are €24.95.

Are you ordering a book and something else from the store? Then it will be sent together as a parcel.

Can I return my order?

Return conditions
You have the right to revoke the contract within a period of 14 days without giving reasons. The revocation period expires 14 days after the day you take physical possession of the good.   

Return notification
Report your return via to revoke the agreement.

Download the return form here.

Authenticity Policy


Charlotte Labee thinks it's important that you know where our reviews come from. Anyone who visits our shop can leave a review. Customers who have purchased a product receive a verified buyer badge. This ensures the authenticity of the reviews. 

Both positive and negative reviews are posted on our website. Therefore, checking the reviews is done as soon as possible. In doing so, only reviews with policy violations such as spam or inappropriate content are not posted. In addition, no paid reviews are posted on the website. 


All of Charlotte Labee's products are developed in the Netherlands.

Charlotte Labee is a member of NPN (Nature and Health Products Netherlands). NPN strives to provide consumers with access to nutritional supplements that are safe, effective, responsible, and accompanied by clear information. All this to promote optimal health.

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