What it is: Out The Door is Americas #1 Super Fast Drying Top Coat for Nails. What it does: Super fast drying top coat dries nails in 45 seconds. Wont chip, non-yellowing. What else you need to know: Use over any polish. Added U.V. inhibitors protect against yellowing while acrylic resin blends provide optimum shine with a flexible, durable finish that dries in 45 seconds or less!