milk_shake Direct Colour Emerald Greenmilk_shake Temporary Emerald Green Colour Treatment. A direct cosmetic colour that can be used at home or in the salon to colour, condition and protect the hair. The colour is temporary and has the ability to correct difficult technical hair problems. A temporary emerald green colour treatment with instant results! milk_shake emerald green direct colour is a temporary colour treatment perfect to be used at home or in the salon. The treatment will