The Eyelash Extension procedure consists of applying soft, light and flexible faux mink eyelash extensions to your natural eyelash. Average application time for a full set is 2-4 hours, depending on the level of fullness you would like to achieve. A variety of styles and levels of volume can be achieved with different techniques. Eyelash Extensions are waterproof so you can shower, swim and live your life with luscious lashes! With proper Eyelash Extension After Care and regular touch-ups, your lashes can last indefinitely.