M's Science is a biopharmaceutical company that specializes in the research and development of pharmaceuticals for central nervous system disorders and oncology. They have successfully developed potent and selective small molecule sigma-1 receptor agonists for treating CNS diseases. Additionally, the company has also made advancements in cancer treatment by utilizing a mutant of the herpes simplex virus. With their focus on drug discovery, M's Science is dedicated to improving the lives of patients suffering from these diseases.