Formulated specifically for use with NovaLash ExtensionsDesigned specifically for use with NovaLash Eyelash Extensions, this water-soluble formula is rich in vitamins A, E and C to condition and nourish your lashes. The clump-free hollow-fiber brush lifts & separates lashes for a perfect application each time. Use of mascara is generally not needed when wearing lash extensions, but can be used to coat any extension-free lashes that may appear when a touch-up application is needed..