Source Naturals L-Tryptophan 500mg, 120 Capsules

Essential amino acid that helps support mood, relaxation, and restful sleep
Plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response
Supports immune functions, as the body's precursor to the kynurenines that regulate immunity
Extremely pure and regularly tested to ensure the highest standards of quality
Promotes drowsiness and good quality sleep in cases of mild insomnia and tryptophan Dietary supplement. Mood, relaxation, sleep. The essential amino acid L-Tryptophan helps support relaxation, restful sleep, and feeling better. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If nee More »