Kavinace by Neuroscience combines two powerful ingredients that have shown to be effective at addressing symptoms of stress, anxiousness, irritability, hyperactivity, and sleep problems. Kavinace anxiety supplement contains the GABA derivative, Phenibut which crosses the blood-brain barrier more easily than GABA. Also known as 4-amino-3-phenyl butyric acid, Phenibut easily crosses the blood-brain barrier, binds to