Dietary Supplement for Mental Calmness & Relaxation. Suitable for Vegetarians/Vegans. Purity & Potency Guaranteed. Suntheanine contains pure L-Theanine, a unique amino acid found in green tea that supports mental calmness and relaxation. Suntheanine is produced via a proprietary enzymatic process guaranteeing essentially pure L-Theanine for maximum effectiveness. In a tasty tropical fruit-flavored chewable tablet. Isura: Non-GMO: ✔Documentation Mass Spec: ✔Lab Tested. Suggested Use: Chew 1-2 tablets 3 times per day or as directed by a healthy professional. Other Ingredients: Organic cane sugar, xylitol, stearic acid.