LIFE EXTENSION OPTIMIZED TRYPTOPHAN PLUS (90 CAPSULES)Supports healthy sleep mood by maintaining healthy tryptophan levels Helps modulate your biological response to stress Promotes satiety for healthy weight management Includes nutrients to encourage healthy tryptophan activity A lack of sleep can cause stress, and stress can lead to a lack of sleep. Break the cycle and support healthy sleep with Optimized Tryptophan Plus. It provides 1,000 mg of L tryptophan that has undergone rigorous manufacturing