ACTIVATOR POWDER Activator powder typically refers to a substance used in chemical processes, particularly in the context of hair treatments like hair dye or hair bleach. In hair coloring, activator powder is often a component of hair bleach or lightener. It's designed to be mixed with a developer (usually hydrogen peroxide) to initiate and accelerate the chemical reaction that lightens the hair. The activator powder contains chemicals that, when combined with a developer, release oxygen to break down the natural pigment in the hair. This process is necessary for lightening or bleaching the hair before applying a new color. It's important to use activator powder as directed and to follow safety precautions since these products contain chemicals that can cause skin irritation or allergic reactions if not handled properly