For that Buddha-like feeling! 200 mg of Zen offers a unique and natural path to relaxation without sedation.* This formula contains a combination of L-theanine and GABA. L-theanine is found in green tea (Camellia sinensis) and has been shown to support the production of alpha-wave activity in the brain.


L-theanine is one of the few supplements that readily cross the blood-brain barrier. In doing so, it exerts subtle changes in the brain’s biochemistry. One of the changes researchers discovered is that L-theanine significantly increased dopamine concentrations in the brain.(1) Dopamine is a neurotransmitter said to affect human emotions.


GABA primarily functions in the body as a powerful inhibitor of neurotransmitters and to help maintain relaxed levels of neuron activity. Over-stimulated or over-active neurons may lead to feelings of restlessness, irritability, and sleeplessness. GABA inhibits nerve cells from over-firing, to promote feelings of calmness, stability and well-being.


  1. Yokogoshi H, et al. Effect of theanine, r-glutamylethylamide, on brain monoamines and striatal dopamine release in conscious rats. Neurochem Res. 1998 May;23(5):667-73.

*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

Label Information

Supplement Facts
Serving Size: 2 capsules
Servings Per Container: 30
Amount Per Serving%DV
GABA (Gamma-Aminobutyric acid)550 mg*
L-Theanine200 mg*
* Daily Value not established

Contains Suntheanine®, pure L-theanine from Taiyo International, Inc.

  • Suggested Use:

    As a dietary supplement, 1 or 2 capsules daily between meals, or as directed by a health care practitioner.

  • Storage: Keep in a cool, dry place, tightly capped.
  • Contraindications: Contraindicated with drugs or use only under the supervision of a healthcare practitioner.
  • Other Ingredients: Hydroxypropyl methylcellulose, L-leucine.

Frequently Asked Questions

Who is the producer of your L-Theanine? Our L-Theanine is exclusively made of Suntheanine® brand by Taiyo.