Mascara is typically not needed with lash extensions. Mascara should only be used when a touch-up is drawing near. Water-soluble mascara can be worn; however constant use of mascara may shorten the lifespan of lashes. Waterproof mascara is not recommended for use, as it will dissolve the bond with the lashes. NovaLash glycol and carbonate free mascara is specifically formulated for use on extensions without interfering with the adhesive.