NOW Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, Supports Relaxation*, 120 Veg Capsules

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.

SUPPORTS 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 gluten
GMP 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
During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers’ recommendations, when provided.