Going brunette (or darker, at least) is synonymous with the Fall season. But before you venture over to the dark side, there are a few things to keep in mind. "If your hair is damaged, going dark won't make it healthier. It will just make it darker," explains celebrity colorist George Papanikolas, who has worked with brunette beauties such as Miranda Kerr, Mila Kunis, and Sofia Vergara. So how can you keep your hair healthy and achieve the right shade of brunette for your skin tone? Papanikolas schools us during our visit to the Andy Lecompte Salon in West Hollywood, where he transformed one client's hair right before our eyes.