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Byline: Rebecca Traister
I'm sitting in dermatologist Lisa Airan, M.D.'s, office on the Upper East Side, about to thrust my bare face in front of a curved surface covered with zillions of small yellow lights, as if a Lite-Brite had mated with HAL from 2001. It's the GentleWaves machine, which uses LED (light-emitting diode) technology to promote production of collagen and elastin and reduce fine lines, sun damage, and other visible signs of aging. I lean into the GentleWaves, and the bulbs flash grandly for exactly 37 seconds. I return to work and forget about my brief trip to Airan's office. That night I go to brush my teeth and do a literal double take when I ...