We all know and love concealer for its ability to camouflage dark circles and zits when we need it most. (I personally owe my day-to-day survival to the stuff, as do these seven celebrities.) However, when it comes to exactly where and how to apply concealer, things can get a little trickier. According to makeup artists and aficionados, there’s more to applying concealer than just grabbing any old formula and globbing it on top of your imperfections. Read more at byrdie.com.