L-Theanine 200 | GNC
Gluten Free Gluten Free
Dairy Free Dairy Free
Soy Free Soy Free
No Artificial Flavors/Colors No Artificial Flavors/Colors
Gluten Free Gluten Free
Dairy Free Dairy Free
Soy Free Soy Free
No Artificial Flavors/Colors No Artificial Flavors/Colors

Product Information



Helps promote a sense of relaxation*


Nutrition Facts
Serving Size  1 Capsule(s)
Servings Per Container  60

Amount Per Serving     % DV

Suntheanine L-Theanine  200 mg   **

** Daily Value (DV) not established.
Other Ingredients
Gelatin, Cellulose
Label (click image to enlarge)

How To Use

As a dietary supplement, take 1 capsule daily.
Keep out of reach of children.
Store in a cool, dry place.


4.3 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Stress Reliever
Keeps one in a very calm state. Helps one stay cool while under stressful conditions. I recommend this product to those everyday working people.
July 22, 2018
7 months ago
Great product.
April 3, 2018
11 months ago
Didn't notice a difference.
I deal with a lot of stress in my life but didn't notice a difference when taking this in dealing with the stress being easier. I was taking it along with Sam-E. I feel better results when taking Gin-Sang.
February 11, 2018
Excellent for anxiety!
I take this twice a day (am/pm) on an empty stomach for anxiety. I have tried many different brands and they don't compare to GNC. I notice a huge difference in the reduction of anxiety...don't settle for cheaper brands, it's not the same stuff!
August 22, 2016
It's keeps me clam working with middle school students!
This product certainly helps with keeping from losing your temper working with preteens and teens. I feel so at ease when taking my one capsule before I get to work. It will keep you very focus and calm. It also worked for my son with ADD.
December 21, 2015
Love it. I take it before working with children.
After getting my "Chocolate chip B-12 Vitamins" and my "Women's Ultra Mega Whole Body" I found this little gem "L-Theanine." I wish it would go on sale for $14.99 but it's worth the current member's price.

I work as a preschool teacher and although I have more than enough energy to keep up with the kids, sometimes the job can get stressful with demands from the children, employees, director and parents.

Taking one a day seems to help keep me centered and balanced.

I would recommend this product.
September 11, 2015
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Browse 4 questions Browse 4 questions and 5 answers
capsule is covered with plastic ,so i have to take it directly?
A shopper on Mar 19, 2016
BEST ANSWER: It's not plastic, it's a consumable gel capsule that dissolves.
Something good for brain activity, concentration and memory?
A shopper on Apr 21, 2016
BEST ANSWER: Definitely!
Can you open the capsules and mix with food to take?
Stephanie O on May 13, 2018
BEST ANSWER: It's better to take L Theanine on an empty stomach because it's an amino acid.
is it ok to take this with ashwagandha? Would that make sense?
brian k on Jan 4, 2019
BEST ANSWER: Yes, because my Integrative Medicine doctor has me taking both L-Theanine 200 mg (one capsule twice a day) along with a product that contains ashwagandha.