Before anything else, let's start with the basics. A hair dye treatment is simply changing the color of your hair using a chemical agent. This can be done at home using a store-bought hair dye kit, or at a salon by a professional. The dyeing process works by breaking down the hair's natural pigment, known as melanin, and then depositing color in its place. The coloring of hair is quite popular these days. In fact, hair color is now considered one of the most important aspects of a person's style. There are all sorts of different hair colors to choose from, and you can even mix and match colors to create your own unique shade.