The Life Line Duo pencil and liquid eyeliner by HUDA Beauty helps you say goodbye to smudging and unplanned smoky eye looks. Long-lasting, water and fade proof (can we add life-proof to the list?), the matte liners are easy to apply and stay put for up to 48 hours. Start with the pencil side to create the outline of your cat eye or wing, before swapping to sweep the liquid formula on top to intensify the shade and neaten the shape.