Our GABA 750mg tablets offer quick support in just one tablet. GABA — or Gamma Amino Butyric Acid — was discovered in 1950 and is a neurotransmitter made by the amino acid glutamate. GABA is a naturally occurring amino acid and signals your brain to relax. Our formula is made without lactose and it’s non-GMO, vegan and gluten free, making it a great option for specialized diets.