A long-wearing gel liner that applies with a brush for foolproof application. Fluidline's ultra-smooth gel formula provides the precision of a liquid liner with a silkier, softer finish. It goes on foolproof with a brush in an easy dip-and-stroke action. Long-wearing for up to 16 hours and smudge-proof, it lines up in a rich array of colors and finishes. This waterproof, non-acnegenic formula is ophthalmologist and dermatologist tested.