Nootropics, on the other hand, refers to a wider array of many compounds, that show promise in improving cognition, brain capacity or focus to name a few. While all the Racetams are Nootropics, not all Nootropics are Racetams.
There are many other compounds outside this group that are also Nootropics, such as ginkgo biloba; which has been used for hundreds of years in china, as opposed to everyday caffeine.
Generally, when seeking an ideal Nootropic, it should possess a few characteristics, although only the newer ones have been modified to actually include characteristics that are typically unwanted (such as relaxation, and anxiolysis)
The verdict is still out when it comes to actually pinpointing a mechanism of action behind the Racetams. Or, it could be because the actual mechanism may be composed of several smaller “mechanisms” bunched together. But what is agreed by most experts include some of the best nootropics.