What it is: The ultimate lip liner for defining lips. What it does: Create and define the perfect pout with NYX Slim Lip Liner Pencil. The moisturizing formula lines lips effortlessly. Line and blend into lipstick or matching NYX Soft Matte Lip Cream This smooth lip liner can be used to fill lips. What else you need to know: It lasts all day while conditioning lips, as it also has hydrating coconut oil in the formula.