The Unforgettable Lip Definer taps into Kevyn Aucoin's original lip liner theory: matching your liner to your lip shade, not your lipstick shade for the illusion of a fuller pout. These six shades are designed to match with every skin tone to enhance the color and wear of your lipstick. Lock-in long-wearing color with this unique dual-ended pencil & brush that glides on smoothly and evenly for perfectly defined lips.