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L-Theanine Pure 99%: 1kg – Calmness, Focus, Sleep

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10-25 business days (estimated)
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L-Theanine is the most abundant amino acid in tea, accounting for more than 50% of the total free amino acids and for 1-2% of the dry weight of tea. Theanine is a white powder and soluble in water. It has a refreshing taste and is a component of the tea flavor.


  1. Regulating neurotransmitters in the brain. The amino acid affects the metabolism and release of neurotransmitters, such as D. in the brain. Brain diseases controlled by these neurotransmitters may also be regulated or prevented.
  2. It may improve learning ability and memory recall.
  3. Sedative effect. Caffeine is a well-known stimulant, but people feel relaxed, calm and relaxed when drinking tea. It has been proved that this is mainly theanine.
  4. Improve premenstrual syndrome (PMS). The sedative effect suggests that it can improve PMS, and clinical trials on women have showed an effect.
  5. Protect nerve cells. It can inhibit neuronal death caused by transient cerebral ischemia and has protective effect on neurons. The death of nerve cells is closely related to the excitatory neurotransmitter glutamate. Cell death occurs when glutamate is excessive, which is usually the cause of Alzheimer’s disease.
  6. Lowering blood pressure. It lowers blood pressure by regulating the concentration of neurotransmitters in the brain.
  7. Enhancing the efficacy of anticancer drugs. It may prevent the outflow of antineoplastic drugs from cancer cells and enhance the effect of antineoplastic drugs. Theanine may reduce the side effects of antineoplastic drugs, such as regulating the level of lipid peroxidation, reducing the reduction of leukocytes and bone marrow cells caused by antineoplastic drugs.
  8. It also has the effect of inhibiting the infiltration of cancer cells, which is the necessary way for cancer cells to spread. Inhibiting its invasion can prevent the spread of cancer.
  9. Protecting the liver and functioning as an effective antioxidant.

Suggested use

One 1/2 to 1 1/2 teaspoon a day.


L-Theanine (100%). Contains no fillers. Shelf Life: 2 Years


The various effects are not guaranteed and results may vary due to several factors between different people.

We strive to ensure the accuracy of the information provided by the manufacturers and recommend that you read all labels and warnings. However, the information is not a substitute for, nor does it replace, professional medical advice, diagnosis, or treatment.

Reviewers have not been compensated for their testimonials. Reviews in other languages than English are automatically translated.


We are proud to offer international shipping and we currently ship to over 150 countries worldwide. We strive to provide great value and service to our customers that exceeds expectations.

How do you ship packages?

We ship packages mainly from China and South-East Asia, although some products are shipped from the USA and the EU. Most orders will be sent out using ePacket or EMS, packets shipped from within a country will use national postal services. Most packages we trace automatically, which means that you can follow your package by using the shipment number.

Do you ship worldwide?

Yes. We provide free shipping to over 150 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Vita Mondo (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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