Get Your Copy of the FAQ Nootropics comprise a broad class of substances often marketed as memory enhancers that can improve thinking, creativity, learning, alertness, or energy. However, when prescription nootropics are used off-label, or when unapproved substances are used for cognitive enhancement, there is an increased risk of dangerous side effects. LegitScript compiled this FAQ to answer your most common questions surrounding Nootropics like: What are nootropics? Are they legal? What are examples of frequently abused or problematic nootropics? Generally in the US, what are regulatory approaches to nootropics? And more.