Stack on infinite layers of volume + length with M·A·CStack Mascara. This never-before-seen continuously buildable, clump-resistant formula gives you customizable gravity-defying volume from natural to next-level, along with instant lash lift and length. Mirror your unique mood and reflect your individuality with the Superstack Mega Brush, which delivers instant volume at first swipe and is ideal for longer or upper lashes. Magnify your eyes and enlarge your lashes with this major mascara must-have! Made in Canada. *Consumer testing on 111 women after using Superstack Mega Brush for one week. MAC does not test on animals and never asks others to test for them. Some governments conduct animal testing to prove safety before selling MAC products. MAC is working toward a cruelty-free world and is taking steps toward that goal every day. Our price is matched to the lowest price advertised on key Canadian retail websites based on our regular review of those websites.