To provide the finest quality available, we use TryptoPure™ Tryptophan from Ajinomoto, a world leader in amino acid development. Only TryptoPure™ conforms to the rigorous standards of both the United States and European Pharmacopoeias.
Each vegetarian capsule contains 500mg of TryptoPure (l-Tryptophan).
Other ingredients: Vegetable Cellulose Capsule, Magnesium Stearate and silica.