L-Theanine + L-Tyrosine from Ostrovit is a vegan food supplement in capsule form that contains a mixture of two precursor amino acids, L-tyrosine and L-theanine. Dosage Take one capsule dailyWarning : This product is intended for healthy adults. This product is not intended for children. Keep out of reach of children. Do not use this product if you are pregnant or nursing. Do not exceed the recommended daily dose. Always consult your healthcare provider if you are taking medication and show them the label. Allergen warning : This product was produced on equipment that processes products containing milk, eggs, soy, crustaceans, tree nuts and peanuts. This product should not be used as a substitute for a varied diet.