GABA, an amino acid derivative, is the chief inhibitory neurotransmitter in the brain. Rather than stimulating neurons to fire, GABA inhibits neuronal activity. GABA is associated with mental states of calm and serenity, and also promotes muscle relaxation.synthesized in the body from glutamic acid where its function is to have an inhibitory effect on the firing of neurons.

Gaba Gamma Aminobutyric Acid 750 Mg Tablets For Calm Mood - 90 Ea GABA (gamma-aminobutyric acid) is an amino acid derivative and a key inhibitory neurotransmitter. Neurotransmitters are chemical messengers that helps to carry information between nerve cells or from nerve cells to other target cells. GABA is synthesized directly from glutamic acid. It has an inhibitory effect on the firing of neurons and supports a calm mood.