Here's an inconvenient truth: There's nothing more beautiful than a sharp wing of black liquid liner or smudgy haze of pencil to instantly define the eyes. Unless, that is, said liner continually smudges onto your upper lid, resulting in emergency damage control and the occasional realization that you just unwittingly sat through an entire meeting/dinner/party with a visible black smudge on your face. 

Here, Gucci shares her pro trick for keeping eyeliner or shadow where you want it (and only where you want). Hint: It all comes down to the right eyelid prep and one easy product for keeping things in place.