MAC knows the answer to instantly boosted lashes: the Macstack Legit Lift Lash Primer. Thanks to its patented Claywax Lift Complex, the formula amps up volume, length and hold, while resisting smudging and flaking. Packed with a blend of castor seed oil and pro-vitamin B5, the nourishing formula conditions your lashes from root to tip. The unique, curler-shaped brush grabs and glides through each hair, coating them evenly for an elongated finish. Get ready to stack on the glam with a customisable lift and curl that lasts all day.