L-Tryptophan

Tryptophan is one of the essential amino acids of human body. The appearance is white or yellowish crystal or crystalline powder, odorless and slightly bitter. It is an important neurotransmitter in human body; It can be used as nutritional supplement for pregnant women and special milk powder for suckling children. It is used for niacin deficiency (pellagra). As a tranquilizer, it can regulate mental rhythm and improve sleep. It is also one of the raw materials of compound amino acid infusion.