Historically speaking, there is only one way in which to properly use a face mask. Step one: Choose one of more than 4,000 options, including sheet, rubber, clay, bubble, magnetic, peel-off, shrinking, gel, or glitter. Step two: Slather said mask on your face. Step three: Rinse, wipe, or peel it off. Done.
That's how you do a face mask, plain and simple — or at least that's what we thought, until Madonna coyly alluded to an off-label usage that involved smearing it all over her behind. But that's just Madonna being Madonna, right? Apparently not: Shortly thereafter, brands started rolling out products formulated specifically for your derrière at an alarming rate. And, at that point, we just felt left out.