Introducing OLIVIA HAIR COLOUR BLACK 01, the perfect solution for those who want to change up their hair color without leaving the comfort of their home. This new hair color is highly pigmented and will allow you to dye your hair any shade you desire, all while keeping it healthy and looking great. Olivias hair color black 01 is a revolutionary new hair color that gives you the darkest, most intense black hair color imaginable. It is safe and easy to use and comes with a one-year warranty. With its neutral undertones, Olivia Hair Colour Black will provide you with the perfect shade that will compliment any skin tone or hairstyle..