Drawing inspiration from backstage Dior runway shows Dior Backstage brush N 12 is the ideal makeup brush for applying foundation. This foundation brush lets you take and apply just the right amount of makeup for flawless correction of the complexion and a high-coverage result with no streaks or excess product. Use Dior Backstage makeup brush N 12 to apply fluid or cream foundation. Apply and blend foundation with the dome of the brush working in circular movements from the center of the face outwards. Brush fibers: two types of synthetic fibers.