Apply a light moisturizer or makeup primer. Adding this layer is particularly important after 40 because it acts as a barrier between your skin and the makeup, keeping foundation and/or concealer from filling in fine lines and pores.
Focus on your undereye area. Most of us were taught to spread foundation from hairline to chin, then conceal. "After 40, you reverse this routine," says Jessica Liebeskind, who did the makeup shown here. Using a narrow-tip makeup brush, dab a creamy concealer from the inner to outer corner to hide darkness and instantly brighten the whole face.
"If you have very even skin tone, you can stop after step 2," Liebeskind says. If that’s not the case, apply a very thin layer of tinted moisturizer — or an equal mix of moisturizer and foundation (to sheer it out). This will minimize any blotchiness while leaving your complexion dewy, not dry. Finish by dabbing concealer only on any blemishes that are still apparent. Tinted moisturizer to try: Jouer Moisture Tint SPF 20 ($38; jouercosmetics.com)