Enriched with oils this formula brings you super smooth application, it glides effortlessly and evenly to define perfect eyes Waterproof and smudge proof this formula stays intense for 16 hours; Opthalmogically tested, this formula suitable for sensitive eyes and contact lens users How to use: Starting at the inner corner of the eye, draw a neat line along the waterline; Starting once again at the inner corner, add a bold stroke along the upper lash line