Start by plumping the area with a rich moisturizer. Then, apply a creamy liquid foundation into folds and the surrounding skin–this helps smooth skin and disguise shadows. Look for one that’s moisturizing to help maintain the “filling” effect. Try: Maybelline New York Instant Age Rewind Cream Foundation ($10; drugstores), Clinique Superfit Makeup ($20;clinique.combobbibrowncosmetics.com ) or Bobbi Brown Luminous Moisturizing Foundation ($45; ). Avoid powdering, which will soak up softening oils and make folds more noticeable. Finally, divert attention from the trouble zone by playing up your cheekbones with a brighter pink blush.   Bobbi’s Top Tips Take 5, 10, or more years off with Bobbi’s insider makeup secrets at prevention.com/bobbi.   Bobbi Brown is a celebrity makeup artist, CEO of Bobbi Brown Cosmetics, and the author of four beauty books.