NOW L-Tryptophan 500mg is a dietary supplement containing 60 vegetarian capsules designed to support relaxation, encourage positive mood, and promote restful sleep. Each capsule provides 500mg of L-Tryptophan, an essential amino acid that helps produce serotonin in the body. Key features: • 500mg of L-Tryptophan per capsule • 60 vegetarian capsules per bottle • Supports relaxation and sleep • Promotes positive mood • Vegetarian/vegan friendly • Made by NOW Foods L-Tryptophan is an essential amino acid that the body converts into 5-HTP, which is then used to produce serotonin, a neurotransmitter that helps regulate mood, sleep, and behavior. This supplement comes in an easy-to-take vegetarian capsule form and is manufactured by NOW Foods, a trusted name in the supplement industry. The recommended serving provides the optimal amount for supporting natural relaxation and healthy sleep patterns.