Check out our top picks for the best tryptophan supplements on the market. If you’re looking for a natural way to support your mood and sleep, NOW Supplements, L-Tryptophan 500 mg is a great option.

The supplement combines 200 mg of 5-HTP, a precursor to serotonin, a neurotransmitter that may help with a "feel-good" feeling, with SAM-e, serotonin synthesizers and L-Tryptophan. Reviewers like ...

L-tryptophan, taurine, L-carnitine, DHA, ARA; lactose- and sucrose-free. Feeding of infants and children sensitive to intact milk protein, with multiple food allergies, colic or persistent ...