Higher Nature Theanine The natural amino acid, Theanine, present in Green Tea, has been found to increase alpha waves in the brain, associated with a state of alert relaxation & supporting a state of wellbeing. It also assists mental alertness, learning & concentration. Suggested intake: Take 1-2 capsules a day (children over 8 years, 1 capsule a day), between meals. One capsule typically provides: 100mg Theanine. No added: Sugar, salt, starch, wheat, gluten, maize/corn, yeast, lactose, dairy products, artificial preservatives, colours or flavourings. Vegetarian & vegan.