What it is: A rich black liquid eye liner that combines long-lasting wear with a precision line.What it does: It goes on effortlessly and can be applied with its own brush to draw a sharply defined line. The long-wearing formula is transfer-resistant and waterproof. How to use: Use the applicator or a 210S Brush (sold separately) and apply to your lash lines with an upward flick at the outer corners for lift.Pro tips: If you make a mistake, use some Cleanse Off Oil on a clean 266S Brush (both sold separately) to correct or sharpen your lines. 0.08 oz. Ophthalmologist tested