Milkshake Colour Maintainer Conditioner Milkshake Colour Maintainer Conditioner is designed to be used after the Milshake shampoo. Formulated to condition colour treated hair whilst keeping the hair"s moisture in balance and preserving hair colour integrity. It contains milk protein derivates to condition and repair the cortex and cuticle plus has the added ingredient Integrity 41 which helps seal in hair colour.