Nutrient Composition: Amino Acid
The content of active substances: ＞90%
Place of Origin: China
Tryptophan is one of the 22 standard amino acids and an essential amino acid in the human diet. It is needed to prevent illness or death, and it therefore must be part of their diet.
Tryptophan is sold as a dietary supplement for use as an antidepressant, anxiolytic, and sleep aid.
In addition, tryptophan functions as a biochemical precursor for serotonin, niacin and auxin.