MAC Cosmetics MACStack Legit Lift Lash Primer, 12 ml, Eyelash Care and Styling for Women, Do you want to give your lashes more intense definition than mascara can achieve? Take your eye makeup to a whole new level with the MAC Cosmetics MACStack Legit Lift Lash Primer eyelash primer. It prepares your lashes for the application of mascara, accentuating its effect while also extending its wear to the absolute maximum. The primer also coats the lashes with a fine layer, enhancing their volume, length and fullness before you go in with mascara. Characteristics: extends the length of eyelashes separates each individual lash long-lasting effect improves thickness How to use: Using a brush, apply along the upper and lower lash line. Then continue with your normal beauty routine.