Its signature black formula is built to last all day - and it's what every girl could wish for! Tested by ophthalmologists. The result is that the use of this mascara is very smooth, it separates the lashes and distributes the creamy formula evenly without aggregation. Do you want to increase volume and wrap your lashes more? Easy; just apply several more layers. As we've said before, the formula won't stack on your lashes! Wow feature multiplier effect - beware, incredible volume and such curled lashes could get you in trouble!