NOW Foods L-Tryptophan 500mg, 120 Vcaps

Supports Relaxation and Promotes Restful Sleep*
Pharmaceutical Grade (USP)
Encourages Positive Mood L-Tryptophan is an essential amino acid important in human nutrition for the synthesis of melatonin and serotonin, hormones regulating mood and synthesis of melatonin and serotonin, hormones regulating mood and stress response.  L-Tryptophan helps support relaxation, sleep, positive mood and immune function.*  As an essential amino acid, it is not synthesized by the body and mus More »