Bumble and bumble - Sunday Shampoo. A clarifying shampoo that effectively cleanses and removes built-up residue from the hair. A weekly (any day of the week) detox to rid hair of product residue, hard water minerals and pollutantsPerfect for product junkies and infrequent washers, use just prior to masques and colour/chemical treatmentsPlease note, this product is not suitable for colour treated hair