The cool thing about this mascara is that there’s only one formula, and all that’s changing is the brush that you apply it with. You can use the brush with the spaces and the fine combs to get more definition and length (bottom comb) and the thicker brush can be used to give volume. I usually want a voluminous look so I actually use the fine comb to make sure that all the lashes are covered and then go over them again with the voluminous comb so that I have more drama. And I only have to use one tube.
$31 at MAC.