The Bumble and bumble Sunday Shampoo is a weekly detox shampoo for brighter, clearer hair. There are plenty of things that can inhibit shine, from excessive use of product, to hard water and pollutants. Make a date with this shampoo once a week to remove the residue that dulls natural shine, and make the most of your other shampooing sessions throughout the week. This one isn't limited to Sunday - you can use it any day of the week for intensely clarified hair! Massage into wet hair and rinse away thoroughly. It's ideal to use before masques, colouring and chemical treatments as it creates an ideally balanced foundation. Anyone can use this shampoo apart from those with colour-treated hair (this shampoo is built to clear).