what is Pore Primer ? 
A professional balm that minimizes the appearance of pores from Korea. Quickly minimize the appearance of pores and fine lines and help makeup stay put with this priming phenomenon. The silky and lightweight formula can be worn under makeup to create a smoother-than-smooth canvas or used throughout the day to mattify shine and touch up problem areas. It’s so translucent, no one will know you’re wearing anything! The oil-free formula contains vitamin E, which is known to protect skin from free radicals.