Achieve flawlessly natural-looking brows with the L'Oréal Paris Infallible Faux Brow Tint Pen in Auburn. This revolutionary brow pen features next-generation technology to visibly double your brow hairs. Its ultra-precise 0.01mm double-brush tip is expertly designed to create seamless, hair-like strokes, perfectly mimicking and enhancing your natural brow shape.Engineered for ultimate performance, its transfer-proof and smudge-resistant formula ensures your brows stay immaculate all day. It is also heat-resistant and water-resistant, guaranteeing long-lasting wear for up to 2 days*. Enjoy a perfectly defined, fuller-looking brow that withstands any condition. For a natural finish, start with clean brows and use the double-tip applicator to brush upward and outward, filling in your brow from anchor to tail.*Consumer test on 114 volunteers.