A game-changing mascara that provides an instant lift and a curl that lasts, plus washes off with water. Leave it to MAC to create a mascara that checks off all the boxes. The impossibly lightweight formula defines, adds volume, and lengthens lashes for up to 16 hours. Sweat and humidity don't stand a chance. This smudge-proof formula won't budgeat least not until you want it to. Thanks to thermal-sensitive technology, the inky black pigments slips off effortlessly with warm water. - Flake and clump-proof. - Ophthalmologist tested. - Safe for contact lens wearers.