From the manufactures website:
L-theanine – Promote Relaxation and Reduce Stress
L-theanine is an amino acid that helps promote a restful, relaxed state without diminishing daytime alertness.* It's free of the side effects commonly associated with other relaxing agents and can be used to aid in stress management.
During a study of human volunteers, L-theanine promoted the generation of alpha brain waves, an indication of relaxation.* Another small, controlled clinical trial suggests that L-theanine supports a healthy stress response.* Results of yet another human trial suggest that L-theanine may act via the sympathetic-medullary system, either in addition to or instead of the hypothalamic-pituitary-adrenal axis.* L-theanine has long thought to interact with the binding of L-glutamic acid to glutamate receptors in the brain.*
Warning: If pregnant, nursing, or taking prescription drugs, consult your healthcare professional prior to use. Contains no sugar, salt, yeast, wheat, gluten, corn, soy, dairy products, artificial colors, flavors, preservatives or ingredients of animal origin.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
Serving size: 1 Vegetable Capsule Servings per container: 60
Ingredients (Amount per serving):
- L-Theanine (Suntheanine® brand) 100 mg
Other ingredients: cellulose, vegetable capsule (modified cellulose), magnesium stearate
Recommended use: Take 1 capsule two or three times daily. If additional support is desired, increase to 2 capsules three times daily, or as recommended by your healthcare professional.