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Doctors Best Suntheanine L Theanine 150mg 90 VegiCaps

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Style number: DRB-00197

Doctors Best Suntheanine L Theanine 150mg 90 VegiCaps


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    Doctors Best Suntheanine L Theanine 150mg 90 VegiCaps

    Clinical studies have shown that nearly 65% of the adult population had experienced stress, and  anxiety. Unfortunately the figure is continually increasing due to the lack of knowledge about the right supplements. When left undiagnosed and untreated, these problems can have harmful and damaging effects on body’s biochemical parameters.

    Tea has always been used to induce relaxation due to the presence of theanine, the amino acid found in Green Tea. Suntheanine isn’t a green tea extract, but is produced through a patented fermentation process that imitates green tea’s natural process, resulting in a pure 100% L-isomer-theanine. L-Theanine also provides an umami taste, and flavor to green tea infusion.

    Product Description:

    • Gluten Free, Vegan, Non-GMO
    • Dietary Supplement
    • Science-Based Nutrition
    • Made from the highest quality raw materials
    • Guaranteed potency
    • Contains 100% suntheanine
    • With the relaxing effects and taste of green tea
    • Comprising 2% of the total dry weight of green tea leaves

    How Does Suntheanine Work?

    This amino acid has been researched extensively, and was characterized by a decrease of beta brain waves (excited state of mind and awake), and an increase of alpha brain waves (alert state and relaxed). It works by stimulating specific brain waves without inhibiting others and enhancing endocrine function.

    Benefits of Suntheanine

    • Enhances mental acuity
    • Promotes relaxation without causing drowsiness
    • Soothes away nervousness and tension
    • Improves quality of sleep
    • Diminishes physical, social, and mental symptoms of Premenstrual Syndrome, such as muscle stiffness, insomnia, cramps, anxiety, depression, and irritability.
    • Enhances the anti-tumor activity of drugs, such as idarubicin, adriamycin and doxorubicin.


    What is L-theanine?

    Found mainly in black and green tea, and in the smallest amount of mushroom, theanine supplements are water-soluble amino acids that constitute 1-2 % percent of dry weight tea. Within 30 minutes, it passes through a blood-brain barrier, and it is used to relieve stress, anxiety treatment, minimal cognitive impairment and improved focus and concentration. Since it has a similar chemical structure to glutamate, it works by transmitting nerve impulses in the brain.

    Benefits of L-Theanine

    • Supports improved concentration and better cognition
    • Has a relaxing effect  
    • Alleviates nervous tension and provides stress relief
    • Helps the body to cope up with stress
    • Is beneficial for patients diagnosed with depression and anxiety by increasing GABA and dopamine levels in the brain.
    • It improves test performance without the disturbances caused by caffeine.
    • In moderate amounts, it is regarded as safe for adults
    • It regulates blood pressure
    • It protects brain from glutamate-induced Neuro-toxicity


    Is it safe?

    According to the studies, Suntheanine has been shown to be safe. Unlike other stress reducing supplements, it does not cause drowsiness. Suntheanine has been in supplements and beverages since 1994, and no indication of contraindications or adverse reactions have been shown or reported. However, it is not recommended for pregnant or lactating women.

    Suggested Use:

    As a dietary supplement, take one capsule daily, or as prescribed by your health care professional.


    Servings Size: 1 capsule
    Servings per Container: 90 servings
                                                                   Amount Per Serving     %DV
    Suntheanine® L-theanine                                                                  150mg            †
    † Daily Value not established.

    Other Ingredients: Rice powder, modified cellulose (vegetarian capsule).

    Contains nothing other than listed ingredients.


    * These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

    Consultation Request:

    Consultation Request:
    Medicines have benefits and some have risks. Always read the label carefully and use strictly as directed. If symptoms persist or you have side effects please consult your doctor, pharmacist or healthcare professional. Vitamins are supplementary to and not a replacement for a balanced diet.