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Jarrow Formulas, Theanine 200, 200 mg, 60 Capsules

By Jarrow Formulas

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In Stock
  • Product Code: JRW-15057
  • UPC Code: 790011150572
  • Package Quantity: 60 Capsules
  • Dimensions: 2.1 x 2.1 x 3.9 in, 0.1 lbs (0.05 kg)
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Product Overview

  • Neurologically-Active Amino Acid
  • Promotes Relaxation
  • Supports Learning Ability
  • Suntheanine
  • Dietary Supplement

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 mitigating glutamate toxicity.

Jarrow Formulas Theanine is made enzymatically from amino acids and is identical to the theanine found in green tea.

Suggested Use

Take 1 capsule per day with water or juice on an empty stomach or as directed by your qualified healthcare professional.

Other Ingredients

Cellulose, magnesium stearate (vegetable source) and silicon dioxide. Capsule consists of gelatin.

No wheat, no gluten, no soybeans, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.


Note: If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product.

Keep out of the reach of children.

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Supplement Facts
Serving Size: 1 Capsule
Serving Per Container: 60
  Amount Per Serving % DV
L-theanine 200 mg *
* Daily Value not established.

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars

Great for cognitive functions, less for anxiety

Posted by Reviewer1976825 on Nov 30, 2008

I bought theanine thinking it would help calm me down and relieve my anxiety, but that effect only lasted for a day or two. Another thing that I was surprised to discover was its effect on cognitive abilities: being a student, I coud focus three times as long, and think way more clearly. Now I take it before challenging and time-consuming tasks and know I won't get tired, but I do have to find something else for anxiety, though. All in all, a good product, but probably does not match the needs of every single individual. The price was great, and the shipment was superfast - iHerb is now my favorite.

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14 people found the following review helpful

Theanine For Anxiety

Posted by Reviewer1319327 on Oct 10, 2008

Great results using theanine to control anxiety. I am no longer dependent on Xanax. Something so simple and natural has changed my life for the better. I highly recommend this product.

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11 people found the following review helpful

much better sleep

Posted by Reviewer3085712 on Feb 19, 2009

I take 300 mg of 5 HTP along with 500 mg GABA, 3 mg melatonin and 400 mg theanine before I go to bed. No more insomnia! I've tried all kinds of pharmaceuticals to help me sleep, but none worked and all had side effects. With this combination, I sleep through the night and don't wake up feeling exhausted. This is a MAJOR improvement in my life because I have chronic fatigue & fibromyalgia. My pain level has decreased now that I'm actually able to sleep again!

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20 people found the following review helpful

Calmness and improved focus

Posted by Reviewer1883988 on Oct 27, 2009

I have been using this product for 3 months now, and I can say that I see improvement in my mental focus and clarity. I used it at a time when all other things stayed the same, so I could gauge the effect of the theanine. I am ordering more now, and adding to my permanent supplement intake. I hope others find that it works for them equally well!

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9 people found the following review helpful

It works

Posted by Reviewer2170867 on Oct 03, 2008

This is a powerful product. Just one capsule really takes the edge off the anxiety.

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7 people found the following review helpful

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