Even celebrities can fall victim to overgrown roots – and believe it or not, there isn’t always a stylist on hand to fix them. This is the situation Bethenny Frankel recently found herself in and, fortunately for Us, she was willing to share the hair care product that helped her effortlessly transform her hair color all on her own. The product Frankel used was the dpHUE Root Touch-Up Kit, a customer favorite that costs only $37 — definitely less than what you might pay at a salon for a touch-up. The kit is designed to make at-home coloring easy and fast, so you can extend the time between salo...