Source Naturals, 60 Tablets, 500 mg, L TryptophanSource Naturals LTryptophan, 500 mg, 60 Tablets, is a dietary supplement designed to support relaxation, restful sleep, and overall health. LTryptophan is an essential amino acid that serves as a precursor for the synthesis of melatonin and serotonin. Melatonin is a hormone that regulates sleepwake cycles, while serotonin is a neurotransmitter involved in mood and stress response. Each tablet contains 500 mg of LTryptophan, which promotes the