Swanson L-Tryptophan offers 500 mg of L-tryptophan per capsule to help support healthy serotonin levels and provide restful sleep.

Essential Amino Acid.

OstroVit Tryptophan VEGE is a dietary supplement based on the amino acid L-tryptophan. The product was created in the innovative OstroVit 100% VEGE CAPSULES product line, which is dedicated to vegans and vegetarians. Product was made without the addition of any substances or animal compounds.

Haya Labs L-tryptophan is a high-class food supplement which contains the essential amino acid tryptophan that plays an important role in the secretion of hormones, necessary for quick falling asleep, restful sleep and a lifted mood.