It’s hard to improve upon a good thing, but NYX has managed to do it withtheirProfessional Makeup On The Rise Lash Booster. Created to boost the intensity of our On The Rise Volume Mascara for even bigger sky-high lashes, with boosted length and volume! It’s also infused with castor oil for a conditioned feeling and the grey-black formula increases the intensity of black mascara and natural lashes, making it great to wear alone or under mascara for a big lash boost!