NOW Foods Acetyl L-Carnitine 500 mg delivers the acetylated form of carnitine — the specific form that readily crosses the blood-brain barrier, making it particularly valuable for cognitive function, memory, and neurological health in addition to its systemic energy metabolism benefits. ALCAR acts as a neuroprotective antioxidant, supports mitochondrial energy production in brain cells, and promotes the synthesis of acetylcholine — the neurotransmitter critical for memory and learning. Research on ALCAR includes studies in age-related cognitive decline, neuropathic pain, depression, and fatigue syndromes. Unlike standard L-carnitine, the acetyl form has demonstrated cognitive benefits beyond fat metabolism. NOW Foods provides 500 mg of pharmaceutical-grade ALCAR per capsule in a vegetarian formulation manufactured in their GMP-certified facility with potency verification.