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Source Naturals, L-Theanine, 200 mg, 60 Tablets

By Source Naturals

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In Stock
  • Product Code: SNS-01499
  • UPC Code: 021078014997
  • Package Quantity: 60 Tablets
  • Dimensions: 1.8 x 1.8 x 3.3 in, 0.15 lbs (0.07 kg)
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Product Overview

  • Dietary Supplement
  • Helps Reduce Anxiety

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.

Suggested Use

1 tablet 1 to 2 times daily

Other Ingredients

Dibasic calcium phosphate, microcrystalline cellulose, magnesium stearate, stearic acid, colloidal silicon dioxide, modified cellulose gum, and hydroxypropyl cellulose

Suitable for vegetarians and Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives or artificial color, flavor or fragrance


Not for use by children or women who are pregnant, may become pregnant, or breastfeeding. If you are taking any antidepressant drugs, such as MAOIs or SSRIs, consult your health care professional before taking this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

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Supplement Facts
Serving Size: 1 Tablet
  Amount Per Serving %DV
Calcium 76 mg 8%
L-Theanine 200 mg
†Daily Value not established

iHerb Customer Reviews

5 Stars
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1 Stars

Great relaxation herb

Posted by Reviewer1182840 on Nov 01, 2008

This is an excellent product when you are under stress! It doesn't make you feel drowsy and it takes the edge off. It also works as a sleep aid. It doesn't make you tired, but if you are already tired, it takes the edge of the help you sleep. And there are no side effects.

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5 people found the following review helpful

essential for my regimen

Posted by Reviewer2648100 on Nov 29, 2008

Sometimes my mind goes into overdrive when all I need is to get a good night's sleep. Calms the thoughts and off to dreamland! I understand that especially anxious thoughts can be tamed day or night with this product. I haven't had the need for a daytime dose. Just my little nudge to sleep. Much nicer than over the counter sleep products. No hangover.

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4 people found the following review helpful

Great stuff!

Posted by Reviewer1065009 on Nov 01, 2010

This does not cause a drugged feeling or knock me out to sleep. Just stops my thinking at night when I'm trying to sleep. No hang over in the morning. A must in my daily "meds".

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3 people found the following review helpful

Fantastic product.

Posted by Reviewer1372230 on Jan 27, 2008

Great product. Instantly produces feelings of relaxation.

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5 people found the following review helpful


Posted by Reviewer2328514 on Oct 12, 2007

Great product, thanks very much.

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1 person found the following review helpful

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