STUDIO FIX MATTIFINE 12 HR PRIMER. 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. Features: Matte primer. Start your customized complexion routine with MAC's must-have mattifying primer. The transformative gel-to-powder primer formula feels weightless with a velvety, powder-soft finish. Key Ingredients: Shine-controlling Oil-Check Complex and infused with lactobionic acid (PHA), algae extract and witch hazel.