Dietrich recommends using a sulfate-free shampoo like Ted Gibson's Clarity Color Shampoo
) on dyed tips, but if upkeep is an issue, rub the Kevin.Murphy Color Bug
) on your ends for a temporary day-glo effect. "The color will get on your clothes during the day, so wear clothes in the same hue, or gather hair into an updo," advised Lauren Conrad's hairstylist Kristin Ess. "A deep conditioner like Wella's Brilliance Treatment
for locations) is a must, since the colored pigment sucks moisture out of hair."