L-Tryptophan Powder

• Encourages Positive Mood*• Promotes Restful Sleep*L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet.* L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function.* Every lot of NOW L-Tryptophan is tested to be free of Peak E and microbial contamination.This product is sold by weight not volume.