Pure L Theanine Powder

Product Name:L Theanine Powder Bulk
CAS No.:3081-61-6
Testing Method:HPLC
Appearance:White Crystalline Powder
Pesticide Residue:Comply with (EC) No 396/2005 Standard
Storage conditions: This product should be sealed and shaded, stored in a dry
Shipping speed:1-3 days

  • Fast Delievery
  • Quality Assurance
  • 24/7 Customer Service
Product Introduction

What is theanine powder?

L-Theanine is a free amino acid unique to tea, a glutamic acid gamma-ethyl amide, a non-protein amino acid of tea. Theanine, also called glutamic acid ethylamine, belongs to the amide group of compounds. In nature, theanine is L-type, Pure L Theanine Powder is white needle-like crystals, which is the main ingredient of tea in the birth of sweetness. The content of theanine is about 1 to 2% of new tea, and its content decreases with the fermentation process. l theanine has been studied for its sedative, immune-boosting, antihypertensive, and lipid-lowering effects, as well as its ability to regulate neural signaling pathways in the brain.

The L Theanine Powder Bulk offered by YTBIO is made by fermentation, the process is green, the product content is high and the quality is stable. YTBIO has a complete quality control system, from raw materials to finished L theanine powder bulk, the production of the whole process can be controlled and traceable, and strict monitoring of pesticide residues in raw materials, a variety of pollutants detected in accordance with the U.S. Pharmacopoeia, the European Pharmacopoeia, the Japanese Pharmacopoeia, and other international standards.


What are the effects of L-theanine?

Relieve stress

Pure L Theanine Powder has a very significant effect on regulating the central nervous system of the human body. It can improve the function of the central nervous system and regulate emotions. It basically has a certain effect on the human body's symptoms of anxiety, tension, depression, irritability and other symptoms. People who relieve some of the work pressure in daily life or are often anxious are especially suitable to supplement theanine, which can quickly relieve the discomfort symptoms in the human body. Studies have proven that l-theanine can effectively reduce spontaneous hypertension in rats. Theanine's ability to reduce high blood pressure may also be considered a stabilizing effect. This stability aids recovery from physical and mental fatigue.

Refreshing and refreshing

After Pure L Theanine Powder is absorbed by the human body, it can also nourish the brain nerves, improve brain function, maintain the excitement of the human cerebral cortex, and play a vital role in refreshing the brain. It has a certain regulating effect on human mental fatigue, low work efficiency, irritability, depression and other symptoms. Drinking more green tea containing L-theanine in a lazy afternoon can help keep your mind clear and improve work efficiency.

lose weight

Tea contains a variety of ingredients, among which theanine has a significant effect on lowering cholesterol in the body.

Improve menstrual syndrome

Periodic Menstruation Syndrome (PMS) is a condition in which women experience mental and physical discomfort 3 to 10 days before menstruation. Theanine’s sedative properties have an improvement effect on premenstrual syndrome, and clinical trials have been conducted to prove its effectiveness.

Lower blood pressure

Blood pressure is primarily regulated by increases and decreases in catecholamines and serotonin in the central and peripheral nervous systems.


Theanine has anti-fatigue effects. The mechanism may be related to theanine's ability to inhibit the secretion of s-hydroxytryptamine and promote the secretion of catecholamines (5-hydroxytryptamine has an inhibitory effect on the central nervous system, while catecholamines have an excitatory effect).

protect nerve cells

Pure L Theanine can inhibit the death of nerve cells caused by transient cerebral ischemia and has a protective effect on nerve cells. Nerve cell death is closely related to the excitatory neurotransmitter glutamate. Theanine is structurally similar to glutamate and competes for binding sites, thereby inhibiting nerve cell death. Theanine is used to treat and prevent glutamate-induced brain diseases, such as cerebral embolism, cerebral hemorrhage, and other strokes, as well as anemia and Alzheimer's disease that occur during brain surgery or brain injury.

Enhance memory

Theanine is a free amino acid unique to tea. It is what gives the tea its lively, moist and sweet taste. Theanine is most abundant in new tea and decreases with the fermentation process. Studies have found that theanine can significantly promote the release of dopamine in the brain center and increase the physiological activity of dopamine in the brain. Therefore, it can make people happy, enhance memory and improve learning ability.


What are the market applications of theanine?

In the food field:

As an emerging food additive, theanine powder has excellent processing characteristics and stability and can be widely used in snacks, candy jelly, beverages, chewing gum and other foods. Theanine can be used as a quality improver for tea beverages. Adding a certain amount of theanine during the production process of tea beverages can significantly improve the quality and flavor of tea beverages. Can be used as an additive to improve food flavor.

Research shows that theanine powder can improve the bitterness of coffee, cocoa, koji drinks, grapefruit drinks, beer, etc., and reduce the astringency of wine, so it can be used as a flavor improver for these foods. At present, Japan has developed chocolate, jelly, pudding, chewing gum, health tea and various refreshing drinks added with theanine. Theanine powder can be used as an additive in functional foods. Theanine has the effects of enhancing the intensity of brain alpha waves, relaxing people's mood and improving memory, and has been tested on humans. Therefore, in the future, it can be added to food as a functional ingredient to develop functional foods that relieve nervousness and have educational significance.

In the pharmaceutical field:

Theanine is used in antihypertensive medications. Animal experiments show that feeding large doses of theanine artificially increases the systolic and diastolic blood pressure of rats, and then significantly decreases them. In addition, theanine powder is now used as an active ingredient as a sedative and has a preventive effect on Parkinson's disease, Alzheimer's disease, conductive nerve dysfunction and other diseases.

Test report on theanine







Physical & Chemical


White crystal powder


Particle Size

100% pass 80 mesh


Specific Rotation

+8.0°to +8.5°


Loss on Drying



Loss on Ignition



Heavy Metal

Total Heavy Metals









Microbiological Test

Total Plate Count



Mold and Yeast













YTBIO is committed to providing customers with the highest-quality Pure L Theanine bulk and services so that every consumer can enjoy natural, healthy, and high-quality food. If you have any inquiries or needs about our products, please feel free to contact us, and we will reply to you as soon as possible.


Package & Shipment



Our Company and Factory


Hot tags:Pure L Theanine Powder,L Theanine Powder Bulk,L-Theanine,Suppliers, Manufacturers, Factory, Buy, price, for sale, producer, free sample, OEM, ODM, private label, white label.