A lash lift is a professional treatment during which a technician uses a curling rod to semipermanently curl your lashes. InLei® takes the standard lash lift process and fine-tunes it to provide an even better long-term experience . This process is called a “lash filler” because not only does it lift your lashes like the standard lash lift, but it actually helps your lashes to be more plump, thick, and nourished as you come in for more treatments.