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Jarrow Formulas, Theanine 100, 100 mg, 60 Veggie Caps

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Jarrow Formulas, Theanine 100, 100 mg, 60 Veggie Caps

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Jarrow Formulas, Theanine 100, 100 mg, 60 Veggie Caps

In Stock
100 mg
100 mg
200 mg
  • Expiration Date: September 2019
  • Shipping Weight:
    0.12 lbs
    Switch to Metric units
  • Product Code: JRW-15050
  • UPC Code: 790011150503
  • Package Quantity: 60 Capsules
  • Dimensions:
    3.9 x 2.1 x 2.1 in, 0.1 lbs
    Switch to Metric units

Product Rank:

#10 in L Theanine >
#182 in Amino Acids >
Frequently Purchased Together
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 1 or 2 times 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.

Supplement Facts
Serving Size: 1 Capsule
Serving Per Container: 60
  Amount Per Serving % DV
L-theanine 100 mg *
* Daily Value not established.
iHerb Customer Reviews

I like it

Posted by iHerb Customer on February 9 2018 | Verified Purchase

Theanine is good for brain and mood especially before sleep (relaxing) and this product is good quality and with good price.

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Great for uneasyness.

Posted by iHerb Customer on February 2 2018 | Verified Purchase

Better then other brands for light anxiety/uneasyness. Removes bad feelings without feeling high or stoned or anything.

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Posted by iHerb Customer on January 2 2018 | Verified Purchase

I have been taking these 100 mg pills for a few days now and I did notice a calming and relaxing effect throughout the day. I will see if 200 mg of theanine per day has a more dramatic effect on me. Pretty happy with the result so far.

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Works good but I take 2-3 a day

Posted by iHerb Customer on October 12 2017 | Verified Purchase

Lowers my heart rate and gives me a peace feeling without drowsy! But I need to buy the next mg. >up

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Instant pleasure after taking it!

Posted by FibromyalgiaSpain on August 13 2017 | Verified Purchase

I suffer Fibromyalgia, Fatigue Chronic Syndrome, CMS chemical Syndrome and EHS electrohipersensibility. Instantly after taking it I felt an instant hype. It helps a lot on stress and depression. Now it has become one of my 5 must with Sam-e, TMG, 5HTP and melatonine to sleep.

Thanks for your feedback!