Male grooming is a billion-dollar industry in South Korea. And David Yi wants to bring Korea's daily, multi-step skincare routines to American men. Quartz is a digital news outlet dedicated to telling stories at the intersection of the important and the interesting. Visit us at https://qz.com/ to read more. Become a member of Quartz, your exclusive guide to the global economy: http://bit.ly/2E7e7jB