There is no shortage of nootropics available for purchase online that can be shipped to you nearly anywhere in the world. Yet, many of these supplements and drugs have very little studies, particularly human studies, confirming their results. While this lack of research may not scare away more adventurous neurohackers, many people would prefer to only take nootropics that have been well-studied. These studies help highlight the benefits and precautions of particular nootropics before a consumer chooses to use them. With this in mind, below is a list of ten nootropics that have abundant human research trials backing up their claims. Read on to learn about the most thoroughly-researched nootropics and the benefits they offer.