The Maria Nila Hair Oxidizer & Color Activator is a crucial component during the hair coloring or color removal process. It is designed to work in conjunction with the dye or color remover to induce the chemical reaction that transforms the hair. The strength of the oxidizer (usually measured in volume) can affect the brightness or deposit of the color. It is important to follow the specific instructions of the coloring or color removal product you are using to achieve the best results.