Lip liners can help prevent feathering and smudging, while providing a precise and clean lip line. The Revlon lip liners are typically available in pencil form, making them easy to use and sharpen. They are formulated with a smooth and creamy texture, allowing for effortless application. Here are some key features and benefits of Revlon lip liners: Definition: Lip liners are used to outline the lips and define their shape. They help create a more precise lip line and can also be used to correct any asymmetry in the lips.