Suntheanine® L-Theanine | GNC

Product Information



Focus, Relaxation, & Stress Relief*
  • Improves Quality of Sleep*
  • Promotes Relaxation & Focus*
  • Helps to Reduce Stress*


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

Amount Per Serving     % DV

Suntheanine® L-Theanine  200 mg   **

** Daily Value (DV) not established.
Other Ingredients
Softgel capsule (kosher gelatin, kosher vegetable glyceriin, purified water, organic yellow beeswax, kosher GMO free sunflower l
Label (click image to enlarge)

How To Use

As a Dietary Supplement adults take 1 Liquid Softgel per day with water on an empty stomach or as directed by a healthcare professional.
Check with your doctor before using this product, especially if you are pregnant, nursing, have existing medical conditions or are taking prescription medications. Do not exceed recommended daily intake. Store at room temperature, tightly closed. Avoid excess heat.


4.8 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Has really been a great supplement for me!
November 5, 2018
4 weeks ago
April 15, 2018
Works great as advertised!
Been taking it for a week and LOVE it! It makes me feel calm and concentrate. I don't get upset as often as I used to. I no longer feel like my heart is going to pop out of my chest and there's no side effect so far. Only give 4 starts because the size of the pills. A little bit smaller would be easier to take. But I sure will keep buying it as long as it works.
July 6, 2017
Focus and Relaxed
This has helped me become focused on tasked that normally would not be able to keep my attention on. It has also helped me with my anxiety that has been a problem since I was young. Mixed with coffee, this supplement can get any job done!
January 4, 2017
No more anger issues
I have only used it for 5 days and have noticed a big difference in my stress and tension. When a stressful situation arises I deal with it and move on. Usually every stressor stays with me always, making me angrier and angrier. But now this helps me to deal with it.
May 12, 2016
I really love taking this new L-theanine from Sports Research after my workouts. It helps me relax without making me tired. I definitely recommend it.
April 26, 2016
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