GABA at 500mg is within the effective range (67% of optimal 750mg). B6 at 2mg is included as a GABA synthesis cofactor, though at RDA level rather than therapeutic. The fundamental challenge with oral GABA is the blood-brain barrier debate: it may not cross effectively. Some people report relaxation effects, others don't. PharmaGABA (fermented) may work better. Decent product, limited by the ingredient's inherent uncertainty.
The set is generated, never written by the brand.
NOW Foods NOW GABA 500mg: the formulation holds up. Lead: Vitamin B-6 at 2 mg. GABA at 500mg is within the effective range (67% of optimal 750mg). Clinical dose on the primary, and the panel holds together.
Relaxation, stress reduction, sleep support.. The 500mg GABA dose is adequate for general relaxation, though its direct brain penetration is debated. The added B6 is a good supportive ingredient. It's a straightforward product, but not a clinical dose for everyone.
2 of 2 shown, 1 dose at what the trials used
Also on the label (inactive): Cellulose, Rice Flour, Silica, Magnesium Stearate

This read comes from the product's own supplement facts panel. Every dose was cross-referenced with published clinical trials to see whether it matches what the studies actually used.

