L-Tryptophan 1000mg cps. L-Tryptophan is an essential amino acid. Essential amino acids are not produced by the body and must be obtained in the diet. L-Tryptophan is a precursor from which the body makes serotonin which plays an important role in promoting of relaxation restful sleep and positive mood. Benefits: supports restful sleep promotes positive mood helps with peaceful relaxation supports combating depression Recommended dosage: As a dietary supplement take 1 or 2 capsules daily preferably at bedtime. Wash down with plenty of water. Supplement Facts: Serving size: 2 capsules Amount per Serving % Daily Value* Active ingredients Pure L-Tryptophan: 1000 mg * Daily Value not established Other Ingredients: Gelatin capsule (made from pure gelatin water dyes: titanium dioxide) magnesium stearate silicon dioxide