Description Usage Supplement Facts L-Tryptophan is an essential amino acid that serves as a precursor for the sleep hormone melatonin as well as for niacin and serotonin. Serotonin is an important neurotransmitter in the central nervous system that has a calming effect and modulates anger, aggression, temperature, mood, sleep, sexuality, appetite and metabolism. L-Tryptophan is the least abundant amino acid in the American diet. Even a person on a high protein diet generally gets less than 1.5 grams a day. Supplementary L-Tryptophan may provide nutritional support for restful sleep and a positive mood.* *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Suggested Use Adults: Take one capsule daily‚ typically at bedtime‚ or more‚ as directed by a health care professional. If you are pregnant, nursing, taking medication such as SSRI's or MAOI's, or undergoing treatment for a medical condition, please consult your healthcare professional before using this product. May cause drowsiness. Store in a cool, dry place and tightly capped. Keep out of the reach of children. Tamper resistant package, do not use if seal is missing. SUPPLEMENT FACTS Serving size: 1 vegetable capsuleServings per container: 90 Ingredients Amount %DV Ajinomoto TryptoPure™ (L-Tryptophan) 500 mg † * % Daily Values are based on a 2,000 calorie diet.† Daily Value not established. Other Ingredients: Hypromellose (vegetable capsule)‚ vegetable lubricant.