Today, changing your hair colour is as common as changing your outfit. And as the current economic climate continues to take its toll, women are choosing to switch from expensive salon treatments to cheaper home DIY hair colouring kits. The home hair colourants market is in good shape. According to a Mintel report, sales are estimated to reach £254 million in 2012. Using hair colourants at home can be a daunting experience. You play an essential role in advising customers on how to use hair colourants correctly, safely and how to choose the best shade to achieve their desired look.