Clinically-proven L-theanine that reduces stress†1,2
Average Review: Read Reviews
Although L-theanine's mechanism of action has not been fully elucidated, current research has focused on L-theanine's effect on brain transmitters and brain waves. Scientists believe that L-theanine supports the balance of various neurotransmitters.†2 In a laboratory study, researchers found that L-theanine is able to cross the blood brain barrier to support the activity of certain neurotransmitters in the brain.†1,2
The human brain is constantly generating a weak electrical pulse called a brain wave. There are four different types of brain waves, which are classified according to frequency: alpha, beta, delta, and theta brain waves. Each brain wave is related to an individual mental condition.3 For example, delta brain waves indicate a mental condition of deep sleep, while theta waves indicate dozing sleep.3 Beta brain waves indicate a state of being awake and excited or anxious, while alpha waves indicate a state of relaxed wakefulness.3 Since the generation of alpha waves indicate a state of relaxed wakefulness, it is used as a measurement of relaxation.3
In a recent study, 50 female volunteers were divided into low stress and high stress groups. The brain activity of the volunteers was measured after the oral administration of 50-200 mg of L-theanine. Researchers specifically noted the activity of alpha-brain waves in each of the volunteers. The researchers found that within 30 minutes of the L-theanine administration, a significantly greater amount of alpha brain waves were generated in the L-theanine groups.†1 This study's results showed that L-theanine supported relaxation by promoting the generation of alpha brain waves.†1
In addition to promoting relaxation and stress reduction, L-theanine may support healthy blood pressure levels that are already within normal limits.† In laboratory studies, L-theanine administration was associated with relaxing effects that also support healthy blood pressure that is already within normal limits.†1 Thus, L-theanine's relaxing effect on our mental state may be augmented by supporting healthy blood pressure as well.†1
L-theanine has been extensively consumed in tea without significant side effects. In fact, the Japanese culture has used green tea for its relaxing effects since ancient times.†1 L-theanine has been used as a food additive in Japan since the 1960s and has been marketed as a dietary supplement since the mid 1990s.4
Although green tea contains caffeine, L-theanine does not. L-theanine safely reduces stress and promotes relaxation without causing the daytime sedation and grogginess that is associated with other relaxing agents.†1,2
Suntheanine®, a patented form of L-Theanine, is a trademark of Taiyo International, Inc.
ETI is an FDA-registered Drug Establishment.
Other Ingredients: cellulose, vegetable capsule (modified cellulose), and magnesium stearate.UPC Codes: 763948095568
We have put our development efforts into a new, exciting product called L-Theanine. L-Theanine is the next generation of nutritional supplements that promote relaxation and stress reduction. L-Theanine is an amino acid that helps promote a restful, relaxed state without diminishing daytime alertness, and is free of the side effects commonly associated with other relaxing agents. We are very pleased to be offering this product, and feel that it will be of great appeal to our customers.
Enter your zip code and select a search range (in miles):
Enter a city and select a state (if you select only a state, you will see a list of cities to choose from):
by "harris"
"The info doesn't tell how many capsules are in the container"
by "Enzymatic Therapy"
"L-Theanine is available in 60 and 180 UltraCaps. The amount of capsules in the container is located just above the price. Thank you for your interest."
Note: You may be contacted by an Enzymatic Therapy, Inc. representative to discuss your review. To maintain your privacy, your personal information will be used solely for this purpose and will not be distributed in any way.
Upon submission, your review becomes property of Enzymatic Therapy, Inc. and may be used at our discretion.