A U.S. Patent for “Culture Medium for Proliferating a Stem Cell, Which Contains Sulfated Compounds” was awarded to Ajinomoto on June 23rd, 2020. The present invention is a method for culturing a stem cell, comprising culturing the stem cell in a medium comprising: a fibroblast growth factor (FGF), and a sulfated compound or a pharmaceutically acceptable salt thereof, wherein said sulfated compound or a pharmaceutically acceptable salt thereof is present in said medium at a concentration that promotes the growth of said stem cell in the presence of FGF, and wherein said sulfated compound or pharmaceutically acceptable salt thereof… Learn More