milk_shake Colour Maintainer Shampoo is a hydrating and protective shampoo designed specifically for colour treated hair. milk_shake have created this colour shampoo to care for the beauty and vitality of colour treated hair. Milk proteins and milk_shake's patented Integrity® 41 complex are the key ingredients and ensure this shampoo repairs the hair cuticle whilst protecting colour against free radicals. The hair is also protected from harmful sun rays.