NOW Foods, L-Tryptophan, Double Strength, 1,000 mg, 60 Tablets

Supports RelaxationEncourages Positive MoodPromotes Restful SleepNon-GMOA Dietary SupplementVegetarian/VeganKosherAmino AcidsFamily Owned Since 1968GMP Quality Assured Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. 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 combination. NOW® Double Strength L-Tryptophan has twice the L-tryptophan (1000 mg per tablet) as in our regular strength product (500 mg per capsule).