MAC's professional duo of two complementary corrector shades is blend for customized skincare correction. Create your ideal skin tone in pairs of blendable shades in four new colour combinations: Light, Medium, Deep Medium and Dark. Fortified with shea butter and vitamins E and C, the correcting formula evens skin tone and visibly reduces the appearance of lines and wrinkles for up to eight hours.MAC Studio concealer and correct duoFortified with shea butter and vitamins E and C3g