l-Theanine features high quality theanine as Suntheanine®, the brand which has been used in scientific studies. l-Theanine is a constituent of green tea. Suntheanine® provides only l-theanine whereas other brands may not be as pure or active. In one study, only Suntheanine® contained pure l-theanine whereas generic brands contained D-theanine. Research shows pure l-theanine is better absorbed and metabolised. Each vegetarian capsule provides 200 mg consistent with clinical research.features clinically studied Suntheanine®Suntheanine® guarantees active and pure l-theaninel-theanine is a constituent of green teaeach vegetarian capsule provides 200 mg IngredientsL-theanine, hypoallergenic plant fibre (microcrystalline cellulose). Vegetarian capsule (hydroxypropyl methyl cellulose). Directions For UseAs a food supplement, take 1-2 capsules daily, in divided doses, between meals, or as directed by your healthcare professional. PrecautionsIf you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use. Use only if safety seal is intact. Food supplements should not be used as a substitute for a varied diet. Do not exceed the stated daily dosage. Keep out of the reach of young children.