milk_shake Direct Colour Warm Brownmilk_shake Temporary Cool Brown Hair Colour Treatment. Warm, rich shades of brown and chocolate tones are the ultimate formulation for luscious and ultra glossy locks. milk_shake Warm Brown Direct Colour is a temporary colour treatment that can be used at home or in the salon to enhance colour, improve the condition and protect the hair. milk_shake love luscious locks and the Direct Colour Warm Brown hair colour is perfect for making that all year