What's her secret?We have all been there: That moment mid-appointment when you catch yourself shamelessly staring at your hairdresser, dermatologist, or dentist and thinking, 'How the heck does she pull it off? What’s the secret to her great hair, pore-free complexion, or flawless teeth?'Well, we decided to go straight to the source and find out how to get that ageless look—naturally. We asked the beauty industry’s most sought-after stylists, aestheticians, and MDs to divulge their tricks for stopping the clock. If there’s no fountain of youth, their unexpectedly simple advice might be the next best thing.Use sesame oil "First thing every morning, I massage organic sesame oil from the health-food store all over my body. Working it in wakes me up and really gets my blood circulating. Plus, the oil hydrates my skin, giving it a healthy glow. Then I jump in the shower—the oil naturally cleans away dead skin cells."—Lisa Hedley, founder and creative director of the Mayflower Inn and Spa, Washington, Conn.Consider fish oil "Anti-inflammatories are the best anti-agers out there. From improving heart and immune functions to helping hair grow and skin look supple, they truly do wonders. I take three 500 milligram capsules of omega-3 fish oil in the morning and at night. I look for labels that say, 'molecularly distilled for purity,' which means pesticide-free."—Arlene Noodleman, MD, medical director of the Age Defy Dermatology and Wellness Center, Campbell, Calif.Down that java "I avoid stained teeth by drinking my coffee quickly. If you sip it over the course of an hour, it keeps coating and recoating. The same goes for other staining liquids, like tea and dark juices."—Elisa Mello, DDS, cosmetic dentist, New York CityBlow off base "I've stopped using foundation every day, because it settles into wrinkles and makes them more noticeable. I start with a concealer just where I need it (under-eye area, blemishes, etc.) and follow it with an allover application of tinted moisturizer."—Joanna Schlip, celebrity makeup artist for Physician’s FormulaKeep it simple "Because I'm a plastic surgeon, companies send me so many skin-care samples—and some of them have 10 different steps! But I'm realistic, so there's no way I'm going to sign up for some huge beauty system that costs hundreds of dollars and requires a commitment that I'm not willing to make. Honestly, here's my daily skin-care routine: I go home, wash my face with a drugstore cleanser, put on a moisturizer, and fall into bed. I find that this simple regimen works well for me."—Karen M. Horton, MD, plastic surgeon and reconstructive micro-surgeon at the Women's Plastic Surgery Center, SanFrancisco Don't eat white sugar... "The number-one ingredient that I avoid in my diet is processed sugar. The reason: It speeds up the aging process by binding to and eventually weakening the collagen in your skin, which can lead to premature wrinkles and sagging. I eat lots of vegetables and fruits every day—and I steer clear of Twinkies at all costs!"—Ava Shamban, MD, dermatologist and owner of the Laser Institute for Dermatology and Skin care, Santa Monica, Calif....Scrub with it instead "In the shower, I lather my hands with a mild cleanser, add a handful of white sugar, and slather it all over my face and body. It makes my skin so smooth and creates a great canvas for makeup."—Carmindy, celebrity makeup artist.Add body while you sleep "At night, I straighten my hair with a flat iron and put it up in a loose ponytail right above my forehead—it's not cute, but I don't care—and wear it like that all night. When I take it down in the morning, it has such a youthful bounce to it."—Laura Hittleman, corporate director of beauty services, Canyon Ranch, Tucson, Ariz.