NSI-189 is an actively and clinically studied antidepressant currently under investigation by Neuralstem, Inc. It has shown to significantly stimulate the generation of new neurons. The mechanism of action of NSI-189 appears to be activation of neurogenesis in the hippocampus and possible enlargement of this structure. According to completed studies, it was proven that NSI-189 improves cognitive deficits in depressed patients. 
 - https://books.google.es/books?id=LoiECgAAQBAJ&pg=PA843&redir_esc=y#v=onepage&q&f=false (Page 843)
One capsule consists of 20mg NSI-189. A package contains 20, 40, 100 or 200 capsules.
To make quality NSI-189 capsules, we combine NSI-189 with the non-active bulking ingredient microcrystalline cellulose. This ensures that the dosage of NSI-189 is accurate.