NOW Foods Alpha GPC 300 mg delivers L-alpha-glycerylphosphorylcholine — the most bioavailable form of choline for the brain, crossing the blood-brain barrier efficiently to rapidly increase acetylcholine levels in the central nervous system. Acetylcholine is the primary neurotransmitter for memory formation, learning, focus, and muscle coordination. Alpha GPC is the most extensively researched choline source for cognitive enhancement, with clinical trials demonstrating significant improvements in memory, attention, and cognitive function in both healthy adults and those with age-related cognitive decline. Athletes also use Alpha GPC for its role in supporting growth hormone secretion and improving power output when taken before exercise. Each capsule delivers 300 mg of pharmaceutical-grade Alpha GPC, manufactured in NOW's GMP-certified facility with potency verification.