Colour maintenance can be one of the trickiest things to master at home, especially if you have blonde hair. The good news is there's an array of purple toning shampoos available to keep your colour-treated tresses bright and brass-free until you can next see a colourist. The Fanola Official No Yellow Shampoo has received a big thumbs up from Amazon shoppers for its ability to knock brassy tones out of blonde, bleached, highlighted and silver hair quickly and effectively. And it only costs £10.95. If you have blond hair it may be a good idea to opt for a shampoo with violet pigment like like Fanola's No Yellow Shampoo 1000ml