Gamma-Aminobutyric Acid GABA (Gamma-Aminobutyric Acid) is a non-protein amino acid that functions as a neurotransmitter in the human brain.* GABA is naturally produced in the body and its presence within the central nervous system may help promote relaxation and ease nervous tension.* Natural color variation may occur in this product. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Results may vary. Consult your healthcare provider before starting any supplement regimen.