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

Item # : 1114
Manufacturer SKU : 753950001978
Product Code : DB0197
Package Details : 90 Vcaps
Serving Size : 1
Serving per Container : This bottle will last for 90 Days
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Doctor's Best, Suntheanine L-Theanine, 150 mg, 90 Veggie Caps
Price(र)  : 3662.00

Ships in 2 weeks


•   Science-Based Nutrition
•   Pharmaceutical Grade
•   Dietary Supplement With 200 mg Active S-Adenosyl Methionine Per Tablet
•   Enhances Mood & Neural Function
•   Promotes Joint Comfort & Mobility
•   Supports Liver Health & Detoxification
•   Vegan
•   Sealed in Blister Packs for Freshness & Convenience


L-Theanine is a unique amino acid found almost exclusively in green tea that exerts beneficial effects on brain metabolism. Theanine induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves. Theanine may improve learning ability and sensations of pleasure by affecting dopamine and serotonin neurotransmitters in the brain. Also, Theanine exerts protective effects on the brain by antagonizing glutamate toxicity. L-Theanine also supports healthy cardiovascular function through this relaxing effect as well as its antioxidant properties.Suntheanine may also improve sleep quality, enhance mental acuity and soothe away tension and nervousness. This “feel good” supplement causes no adverse reactions. In fact, in Japan, theanine is added to soft drinks and chewing gum for the purpose of inducing relaxation.

Suggested Use:

One capsule daily, or as directed by a health care professional.


Supplement Facts

Serving Size: 1 capsule

Servings per Container: 90 servings


Amount Per Serving

% Daily Value

Suntheanine L-theanine

150 mg

† Daily Value not established.


Other Ingredients:


Microcrystalline cellulose, modified cellulose (vegetarian capsule)

Non-GMO, gluten-free, vegan



Store in a cool dry place.

Q.What is L Theanine?
A.L Theanine is an amino acid that helps promote a restful, relaxed state without diminishing daytime alertness and without the side effects commonly associated with other relaxing agents.

Q.How does it work?
A.Scientific studies show L Theanine impacts both the nervous and cardiovascular systems to produce a calming effect on mental state which is why it’s often referred to as the 'feel good supplement'. It’s been shown to promote deep muscle relaxation and improve good quality sleep. Scientists have investigated L Theanine effect on brain amino acids and neurotransmitters. In clinical trials L Theanine was shown to increase alpha brain waves which are considered an index of relaxation. A recent study concluded L Theanine promotes the generation of alpha brain waves and promotes relaxation.

Q. Does L-theanine have Any Other Benefits For Our Bodies Besides Promoting Relaxation?
A.Yes, L-theanine has been shown to help the regulation of blood pressure. The same neurotransmitters that help us relax also regulate blood pressure in our bodies. When L-theanine is absorbed in our bodies, it results in slightly lowered blood pressure. Laboratory studies have demonstrated that L-theanine affects both the nervous system and the cardiovascular system. Thus, L-theanine's calming effect on our mental state is augmented by lowering blood pressure as well.

Q. Does L-theanine have the same type of side effects as Prescription Antidepressants & Anti-Anxiety Medications?
A. L-theanine has been extensively consumed in tea without any side effects. Using an L-theanine supplement is a safe alternative because it will relieve anxiety and promote relaxation without causing the daytime sedation and grogginess that is associated with prescription medications on the market today. However, individuals with chronically high stress levels and poor sleep patterns may feel slightly sleepy when first using an L-theanine supplement. This effect occurs, not because the L-theanine makes them sleepy, but because they are finally relaxed and able to listen to their bodies' demands for rest. After catching up on a few nights' sleep, they should be able to use L-theanine without feeling sleepy.


BRILLIANT  (27/09/2014)  
Works great as a study drug.