It is the chief inhibitory neurotransmitter in the mammalian central nervous system. It plays a role in regulating neuronal excitability throughout the nervous system. As the natural it has been internationally recognized as the 21st century's health supplements.it is a natural active constituent widely exists in animal/plant body. It has very high biological activity．Then what’s this ? It is 4-Aminobutyric-acid. GABA(4-aminobutyric acid) is an important inhibitory neuro transmitter in the mammalian central nervous system, with the functions of nerves calming, cerebral blood circulation stimulation, enhance brain energy, providing nutrition for the nerve cell, increasing the secretion of growth hormone and improve liver and kidney health etc. Meanwhile, 4-Aminobutyric-acid can also help relieve and prevent the hypertension. In addition, 4-Aminobutyric-acid as an important functional ingredient for food & beverage, has already be extensively applied to tea drinks, dairy, leavened food, cake, soup and others for healthcare and medical purposes.