Promotes relaxation. 250 mg per capsule. Nutritional supplement. May promote relaxation and relieve nervous tension. An amino acid that works as a neurotransmitter in your brain promoting relaxation. Are you restless when counting sheep? Take a calming pill ! Stress can not only disrupt the flow of our daily lives it can threaten the nervous system because it depletes the body's reserves of precious B vitamins. Help Relax with the Calming Benefits of Swanson GABA. Produced in the brain GABA plays an important role in the brain's response system helping us adapt and respond positively to stress. Our low dose formula contains 250 mg GABA , which provides maximum flexibility in solving the problems of modern life.