L-Tryptophan 500mg - 120 Vegetarian CapsulesNOW Foods L Tryptophan 500mg delivers an essential amino acid your body can't produce on its own but desperately needs for optimal wellbeing. This powerful supplement serves as a natural precursor to serotonin and melatonin, supporting balanced mood, restful sleep, and healthy immune function. Each vegetarian capsule contains 500mg of pure L tryptophan, making it ideal for those seeking natural support for sleep quality, emotional balance, and overall