The endless craving progress that is distinctive for mankind, has delivered us countless innovations. At this point in history, this perfecting gaze is also directed towards ourselves, for we aspire to be smarter. The practice of cognitive enhancement, through medication and other stimulants, has led to various concerns. This thesis focusses on the problems concerning fairness, such as cheating, distribution of benefits, equality, and social pressure. Building on multiple arguments, it will be defended that in the current situation, large-scale use of cognitive enhancement does not raise fairness issues large enough to stand in the way of universal permission.