This innovative mascara allows you to coat lashes into a fluttery, natural finish but that isn't all! The super skinny applicator allows you to actually achieve a tightlining effect along your upper (and lower lash line) by wriggling it into the space between your lashes and under the root. I thought at first it might not work due to the skinny brush but the brush actually creates a full set of fluttery lashes (no real volume but some very nice, natural length) while pulling EVERY single lash from tip to root up and outward. Wriggling the brush in just the right way allows mascara to nudge under your lash line to create a tightlining effect. Now it can be used alone or in conjunction with your favorite mascara of choice. Alone it has a fluttery natural lash effect so adding a volumizing mascara into the mix will definitely produce more drama! Crazy right? Possibly the best mascara tool in my arsenal at the moment.