This mattifying serum preps the skin for the best matte makeup results, solving oily, shiny, large pores and acne-prone skin concerns. WHAT IT DOES. A scientifically developed multi-action water-to-powder mattifying priming serum that controls shine, refines and soothes with our Comfort Matte Complex - a unique blend of seven potent, balancing skincare ingredients. PRO TIP As a midday touch up, tap and press on top of foundation through the T-zone for a natural matte powder free finish.