Citicoline is nature's way of keeping the brain's energy-producing centers firing. Clinically tested for efficacy, Cognizin delivers a patented form of citicoline that supplies your brain with the energy it needs to stay sharp. Cognizin is a nootropic that is pure, vegetarian and allergen-free. So look for Cognizin brand citicoline on the ingredient panel of your favorite supplements to help keep your mental edge.*