(1) A lifesaver for thinning eyebrows, long-lasting and smudge-proofUsing a film forming technology that locks in moisture and luster, a gentle brush over your eyebrows quickly forms a coating that locks in your makeup for up to 12 hours, waterproof, sweat-resistant and smudge-proof. Say goodbye to the embarrassment of fading eyebrow makeup. (2) An invisible eyebrow topcoat that seals your brows in an instant,Its fluid and transparent formula invisibly locks in your eyebrows, non-sticky and non-reflective. Made of American Dupont silk, the brush finalizes the eyebrow look with a feather-like soft touch.