Green tea has been recognized for centuries as having relaxant properties. L-Theanine has been discovered as the active ingredient responsible for promoting relaxation. In a preliminary study, this supplement enhanced alpha wave production in the brains of the participants. Alpha waves are considered an indicator of relaxation, and this occurs through L-Theanine without causing drowsiness. Other preliminary research shows that it helps emotional distress, depression, premenstrual tension, and muscle strain, and it aids in sleep enhancement and blood pressure regulation with no adverse side effects. PhytoPharmica uses Sun Theanine, the brand used in scientific studies.

The suggested use of this supplement is 1 to 6 capsules in divided doses between meals.