noopept as a nootropic drug, it's very common and popular, also these are many other nbootropics, such as piracetam, pramiracetam; alpha-gpc; coluracetam; prl-8-53; vinpocetine; N-Methyl-D-Aspartic Acid; Modafinil ;Adrafinil; Phenylpiracetam; Sunifiram; Pramiracetam Sulfate; Phenibut...