Now L-Tryptophan

Encourages Positive Mood* Promotes Restful Sleep* L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet.* L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function.* Every lot of NOW? L-Tryptophan is tested to be free of Peak E and microbial contamination. Natural color variation may occur in this product.Bullet PointsSUPPORTS RELAXATION*/PREMIUM GRADE: An essential amino acid that is not synthesized by the body and must be obtained by diet or supplementation.ENCOURAGES POSITIVE MOOD*/PROMOTES RESTFUL SLEEP*: Critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function.* Every lot tested to be free of Peak E and microbial contamination.CERTIFICATIONS/CLASSIFICATIONS: Soy Free, Nut Free, Vegan/Vegetarian, Non-GMO, Egg Free, Dairy Free, Made without GlutenGMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).Packaged in the USA by a family owned and operated company since 1968.