Elevate your lash stack to a new level. M·A·CStack Elevated Mascara delivers +165% instant lash lift* with 36-hour wear. Its dual-sided, precision-tip curved brush lifts, separates and defines lashes without clumping. This 91% naturally derived formula** featuring argan oil stacks up fanned-out lashes.*Clinical testing on 32 people.**Per ISO 16128 from plant sources, non-petroleum mineral sources and/or water."