Gamma Aminobutyric Acid (GABA), 250 mg n Liposomal GABA provides 250 mg of GABA delivered in non-GMO phosphatidylcholine liposomes to support optimal absorption and bioavailability.* n Gamma Aminobutyric Acid (GABA) is a naturally occurring amino acid neurotransmitter that carries information between nerve cells.* GABA is critical for the function of a healthy nervous system and is known for its calming effect.*