5-HTP is extracted from Griffonia simplicifolia. The formula also contains rice flour and hypromellose; it is not made with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients, though the facility processes other allergens. For adults only: take one capsule daily, preferably on an empty stomach at bedtime. Not recommended during pregnancy or nursing. Consult a physician if taking medication or managing a medical condition; it may cause drowsiness or mild, temporary gastrointestinal symptoms. Take with food if gastrointestinal upset occurs. Keep out of reach of children; natural colour variation may occur. Store in a cool, dry place after opening.