That's a good question that can be answered in many ways! Legally, we are unable to make health claims like this so...Yes, No, Maybe, Not exactly; however they can improve your ability to learn, memorize and recall information, focus your attention, and stay motivated.
Taking certain nootropic supplements can actually increase the number of neurons and synapses in your brain, while others make communication between these neurons more expedient. When you add these tiny changes together, the result is measurably improved mental performance and an increase in your intellectual power.