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.
As a dietary supplement, take 1 tablet 1 to 3 times daily on an empty stomach or as directed by a healthcare professional, or at bedtime.
Serving Size: 1 Tablet
Servings Per Container: 60
Amount per Serving
L-Tryptophan (Free-Form) 1 g (1,000 mg)