What it is: A colorless lip liner that prevents lipstick from bleeding over the lip line. What it does: Lip Line Perfector creates an invisible barrier that keeps lip color from feathering. Its creamy texture glides on effortlessly while its unique formula fills in fine lines and hydrates the skin. Perfect for all lipstick shades, Lip Line Perfector's long-lasting result ensures your favorite lip look will last all day and won't smudge.