In one aspect, a method of increasing hair growth includes administering to an individual in need thereof a pharmaceutical composition containing a therapeutically effective amount of isomyosmine or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable vehicle therefor. In another aspect, a method of improving the appearance of hair includes administering to an individual in need thereof a pharmaceutical composition containing a therapeutically effective amount of isomyosmine or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable vehicle therefor.