Curly or wavy hair sometimes looks duller because light doesn't reflect off it as well. "Use a leave-in conditioner that will not only hydrate hair but create shine and not weigh down curls," says Adir Abergel, who works on the lush manes of
Kate Beckinsale (at left),
Anne Hathaway and
Nicole Richie. He recommends
Paul Mitchell The Conditioner.