SWANSON L-Tryptophan 500mg - 60 caps

Helps support healthy serotonin levels, restful sleep and regulates body's circadian rhythm

Important amino acid that must be obtained from diet or supplements

Helps combat jet lag

Looking for effective sleep support? Swanson L-Tryptophan offers 500 mg of L-tryptophan per capsule to help support healthy serotonin levels and provide restful sleep. L-tryptophan, an essential amino acid, has to be obtained in the diet or in supplement form. Extensive lot tests indicate no Peak-E in this product.