*AdvaCare L-Theanine is GMP certified.

**AdvaCare L-Theanine is manufactured in our facilities located in China, India and USA.

(choose the specifications you require below)



*or according to distributor/market composition


60 capsules/bottle, 1 bottle/box (premium packaging);120 capsules/bottle, 1 bottle/box (premium packaging)

*or according to distributor/market requirements




Amino Acids

Request Quotation:

*Once Inquiry List is completed, fill fields below and SEND INQUIRY

Product Information

General Information:
AdvaCare is a GMP manufacturer of L-Theanine capsules.

L-Theanine is an amino acid, which is a building block for proteins. Typically theanine is used for treating anxiety, high blood pressure, preventing Alzheimer’s, and for making cancer drugs more potent. It was discovered in the 1950’s when it was isolated from gyokuro leaves.

It has shown in studies that it has reduced anxiety levels while increasing alertness. This makes the amino acid very interesting because of its dual purpose. In the brain, l-theanine binds to brain receptors and provides relaxation as opposed to stimulating effects. Theanine can be used as a relaxing agent without sedation. Studies have shown that l-theanine helps subjects to sleep better and enhances sleep quality and recovery from exhaustion. Studies have also shown theanine has mood enhancing effects; it can cross the blood-brain barrier and affect brain chemistry such as serotonin and neurotransmitter levels. Theanine is also helpful against the effects of alcohol by changing alcohol chemistry: accelerating the break-down of acetaldehyde and blocking toxic substances. Since theanine restores glutathione, an antioxidant and detoxifier, the liver’s function can be boosted to reverse alcohol damage.

Theanine has provoked interest in scientists for its anti-anxiety properties. It could act as a factor in preventing the development of neurodegenerative disorders such as strokes, and schizophrenia. It has been shown to block glutamate which makes it a promising supplement for neuroprotection and prevention in the areas of the brain.

The above information is meant for the extra information and not replaces the advice from the doctor. It is not meant to cover all the precaution, possible usage, and adverse effects. It is not necessary that above information may fit your specific health requirement so it is advisable to consult doctor or healthcare provider as individual supplement requirements differ from person to person.

Product Price