L Theanine

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Enzymatic Therapy L-Theanine, 60 UltraCaps, From Enzymatic Therapy

Reg. Price: $17.99

Your Price: $9.75

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Garden of Life Tea Trio Synergistic Three-Tea Blend, 60 Capsules, From Garden of Life

Reg. Price: $21.58

Your Price: $12.95

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Super 5-HTP Plus Valerian and L-Theanine, 50 Capsules, From Action Labs

Reg. Price: $25.29

Your Price: $13.85

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L-Theanine (Suntheanine), 60 VegiCaps, From Country Life

Reg. Price: $29.99

Your Price: $22.50

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L-Theanine, 200 mg, 60 Vegetarian Capsules, From FoodScience of Vermont

Reg. Price: $29.99

Your Price: $16.80

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L-Theanine, 60 Vegetarian Capsules, 400 mg, From Olympian Labs

Reg. Price: $27.99

Your Price: $20.37

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Enzymatic Therapy L-Theanine Stress, 180 UltaCaps, From Enzymatic Therapy

Reg. Price: $46.99

Your Price: $24.75

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Now Foods L-Theanine - Double Strength, 60 Vcaps, 200 mg, From NOW

Reg. Price: $29.99

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Doctor's Best Suntheanine L-Theanine, 90 Veggie Caps, 150 mg, From Doctor's Best

Reg. Price: $27.99

Your Price: $13.15

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Relax-All Supports Relaxation, 60 Capsules, Relax All, From MRM

Reg. Price: $24.95

Your Price: $12.58

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L-Theanine 200mg, 60 Capsules, From Source Naturals

Reg. Price: $31.50

Your Price: $15.36

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L Theanine 200 Mg , 45 Capsules, From Solaray

Reg. Price: $28.99

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Irwin Naturals Stress-Defy Balanced & Relaxed, 84 Liquid Softgels, Stress Defy, From Irwin Naturals

Reg. Price: $31.99

Your Price: $23.99

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Natural Factors Suntheanine L-Theanine, 60 vCaps, From Natural Factors

Reg. Price: $25.95

Your Price: $18.17

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Jarrow Formulas Pressure Optimizer with Ameal Peptide, 60 Capsules, From Jarrow

Reg. Price: $35.95

Your Price: $21.99

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L-Theanine w/B6 30 Capsules, Country Life

Reg. Price: $13.88

Your Price: $13.22

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L-Theanine 200 mg 30 caps, FoodScience Of Vermont

Reg. Price: $10.71

Your Price: $9.40

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Theanine with Serotain 60 tabs from Natrol

Reg. Price: $18.88

Your Price: $15.20

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L-Theanine Maxicaps 200mg 30 caps, Thompson Nutritional Products

Reg. Price: $9.10

Your Price: $7.10

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L Theanine

L-Theanine

L-Theanine - A Unique Anxiety Reducer and Mood Enhancer

L-Theanine is a free (non-protein) amino acid found almost exclusively in tea. It is the predominant amino acid in green tea leaves, giving tea its characteristic umami or '5th taste'. The calming effect of green tea may seem contradictory to the stimulatory property of tea's caffeine content but it can be explained by the action of L-theanine.

L-Theanine is a unique amino acid found almost exclusively in the tea plant (Camellia sinensis) and is the primary ingredient contributing to the unusual taste of green tea. Animal studies have shown that L-Theanine crosses the blood brain barrier, increases dopamine and GABA levels in the brain, and inhibits the stimulatory properties of caffeine. Human studies have shown that taking L-Theanine results in the emission of brain waves associated with a state of relaxation.

L-Theanine and Relaxation
Research on human volunteers has demonstrated that L-theanine creates a sense of relaxation approximately 30-40 minutes after ingestion by at least two different mechanisms. First, L-theanine directly stimulates the production of alpha brain waves, creating a state of deep relaxation and mental alertness similar to what is achieved through meditation. Second, L-theanine is involved in the formation of the inhibitory neurotransmitter, gamma amino butyric acid (GABA). GABA influences the levels of two other neurotransmitters, dopamine and serotonin, producing a relaxation effect.


L-Theanine and Depression
L-theanine has a significant effect on the release or reduction of neurotransmitters like dopamine and serotonin, resulting in improved memory and learning ability. L-theanine may also influence emotions due to its effects on the increased release of dopamine. L-theanine reduces brain serotonin concentration by either curtailing serotonin synthesis or increasing degradation in the brain.


L-Theanine and Stress and Anxiety
Stress and anxiety are debilitating conditions that upset the balance of our hormones leading to a loss of our well-being, performance, and even lifespan. Stress impairs the immune system, leaving us vulnerable to opportunistic infections, and can cause depression. People under stress can mitigate many of the harmful effects of stress with L-theanine.


L-Theanine Does Not Cause Drowsiness
One of the greatest benefits of L-theanine is that you can use it without becoming sedated in the process. L-theanine doesn't make one drowsy, nor does it promote sleep because this amino acid does not produce theta waves in the brain.


Japan has approved L-theanine
L-theanine is extremely safe. There are no dietary limits on L-theanine intake by the Japan Food Additive Association. In 1964, the Japanese Ministry of Health and Welfare approved L-theanine for unlimited use in all foods, with the exception of infant foods.


L-theanine is most effective in the range of 50-200 mg, with the effect being felt within 30 minutes and lasting for 8-10 hours. Individuals with high stress levels may increase their dosage of L-theanine to at least 100 mg, with no more than 600 mg being taken in a six hour period. FDA recommends a maximum dose of 1200 mg daily, although the reason for this limit is not clear, due to its demonstrated safety.

There are no known adverse reactions to L-theanine and no drug interactions have been reported. L-theanine is not affected by food and may be taken anytime, as needed. Because it has a mild taste, capsules may be opened and dissolved in water. Although it is probably safe for pregnant women and nursing mothers, we discourage its use by them pending conclusive research

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L Theanine