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L-Theanine Powder

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Address: Rm 218, Tangxing Digital Bld, #6 Tangxing Rd, Xi’an, Shaanxi, China
Phone: +86 17791258855
Landline: +86 (0)29 81870046

L-Theanine Powder

Other Name

L-Theanine, Nervonic acid


90%, 98%

Part Used


Test Method



white crystal powder


Customized various dosage forms and packaging


HACCP, ISO22000, IS09001, Eu-Organic, Us Organic, HALAL, KOSHER

L-Theanine Powder

Product Description

L-theanine is an amino acid found in tea leaves. Theanine’s calming and relaxing effects on the mind and body. L-theanine can increase levels of certain neurotransmitters in the brain, improving mood and reducing anxiety.

L-Theanine is a natural health supplement that relieves stress and anxiety. Theanine is used as a dietary supplement and added to beverages and foods.

The caffeine contained in tea and coffee has the effect of stimulating nerves and awakening the brain. The L-theanine in tea is believed to relieve the stimulant effects of caffeine. It has been confirmed that the beta waves that occur when drinking caffeine (i.e., the brain waves that occur during excitement) will be inhibited by L-theanine. .

Product Specifications

Specification:20%,90% 98%

Certificate of Analysis


Inhibits the stimulant effects of caffeine.

Reduce PMS symptoms
Anti-pressure effect.
Improve sleep quality.

Improve menopause disorders
Improves learning ability and concentration.

Application Cases

Why RainWoodBiotech?

RainWood Biotech is engaged in researching, producing, and exporting concerning the field of health and fitness, cosmetics, pharmaceuticals, food, and beverages additives, and also feeding staff who have obtained EU and US organic certification, KOSHER, HALAL, ISO9001, HACCP, and ISO22000.
RainWood Biotech was established in 2006, located in Shaanxi Xi’an Hi-tech Development Zone, covering 19 acres of land with a factory construction area of around 10000 square meters.

RainWood Biotech believes that natural specialty ingredients and innovative technology are the best basis for us to serve our clients’ needs. We are capable and proud to provide the greatest product solutions to increase more value of the products themselves.

Frequently Asked Questions

Rainwood provides herbal extract, cosmetic ingredient and food additive product.

Our company has its own competitive R&D team, and currently owns more than 100 employees. Among them, there are 3 Dr. doctors majored in this field. Besides, Postgraduate employee accounts 10%, undergraduate employee accounts 15%, and professional technical personnel accounts 5%. Its professional talented personnel are completely equipped in laboratory for the quality control.
Various Detection Devices are well equipped, such as HPLC, GC, UV, TLC, Spectrophotometer, AAS, Polarimeter, Auto titrators, BOD Incubators, COD Incubators, Melting point apparatus and so on.
The entire production process from the source of raw material, production, inspection, warehousing, customer service and other sectors are in strict accordance with the ISO9001:2015 system.
We will provide you with satisfactory products according to your requirements.

Please contact our sales person and they will guide you with an easy and professional way for your order.

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We will contact you within 1 working day, please pay attention to the email with the suffix “”.