The ultimate sidekick for MAC's #1 foundation. Start your customized complexion routine with MAC's must-have mattifying base. Achieve complexion perfection with this matte primer that delivers an all-day reduction in the appearance of pores, controls oil and shine up to 12 hours, promises a lasting improvement in skin texture and improves the wear of makeup for up to 12 hours. The transformative gel-to-powder formula feels weightless with a velvety, powder-soft finish. This oil-free, sweat- and humidity-resistant primer is formulated with a shine-controlling Oil-Check Complex and infused with lactobionic acid (PHA), algae extract and witch hazel. Key Claims and Benefits: Controls oil/shine, 12 hours Reduces the appearance of pores, 8 hours Improves skin texture, 6 hours Improves quality of foundation wear, 12 hours Oil-free Immediately mattifies skin Sweat- and humidity-resistant Does not clog pores/does not cause acne How to Use: Smooth evenly onto cleansed face after moisturizer (and before foundation) with fingertips, sponge or brush. 1-oz.