RacetamsIn this thread all possible racetams are discussed. What to stuck with racetam? What is the strongest racetam? Where to buy racetams. What is the right racetam dosage, cycling, side effects.

By definition Nootropics are represented as substances which promote better neurological functioning or enhancement with a low risk of negative side effects for the user. They could be synthetic or natural drugs and supplements. 
In reality what is considered a nootropic substance can be questionable and is prone to scrutiny and reexamination. In other words, the understanding around nootropics has changed since they were first introduced in the English language by S. Giurgea and V. Skondia. 
These individuals are Belgian scientists working in the field of pharmacology. They were the ones that discovered the first Nootropic, Piracetam in the year 1963.
Unlike other brain supplements, nootropics that fit in the original definition, like Piracetam are substances which improve the quality of brain functions, while avoiding any potential negative side effects, commonly associated with drug use.
Piracetam is a synthetic drug created in a lab by scientists, and it is the first analogue to be derived that belongs in the family of Racetams. Almost all of the members of this drug family has presented nootropic properties and furthermore they have been declared and continually recognized as nootropics.
Not all nootropics are synthetic, so escape making that assumption. Some of the natural nootropic substances are quite common such as fish oil, while others are really exotic, such as yerba mate. Most times nootropic products on the market feature multiple different synthetic or natural substances combined in a specific way that help synergy between all ingredients.

It's easy to get lost in the world of nootropics and have absolutely no idea how any of these substances are going to help you. To be able to differentiate how these chemicals can help you, understanding needs to come first. Since we are all different and have various needs, this is the sure-fire way to go about, if you want to make crystal clear decisions.
First on the list is a family we mentioned before, Racetams. 
Piracetam is the mothership of these substances and it's the first nootropic ever discovered. Racetams have been used to boost cognitive funcion and to prevent brain cell damage from alcohol and cigarettes. As a side effect, they also increase communication between both hemispheres of the brain. 
Other nootropics in this family include Aniracetam, Pramiracetam and Oxiracetam.