GABA PowderWhat is GABA powder? GABA powder is Gamma Aminobutyric Acid in powdered form. GABA is a naturally occurring compound that acts as a neurotransmitter in our brains. GABA is a nootropic or cognitive enhancer. The opposite of a stimulant, GABA acts as a depressive, but dont let that scare you! What this means, is that GABA works to relax us and clear our minds, helping us to wind down. GABA also has a strong ability to promote growth hormone production,