Name a common chemical used in barbershops for hair coloring.

Hydrogen peroxide is commonly used in barbershops for hair coloring because it acts as an oxidizing agent. It is typically employed in conjunction with other hair color products to lighten the hair and to develop the color. When mixed with hair dye, hydrogen peroxide creates a reaction that helps open up the hair cuticle and allows color to penetrate the hair shaft, promoting even and effective coloring.

While ammonia is often used in hair color formulations to help open the hair cuticle, hydrogen peroxide plays a crucial role in the coloring process itself. It’s essential for creating the desired lightness and tone in hair coloring treatments. This makes hydrogen peroxide a primary ingredient in many semi-permanent and permanent hair color products used in barbershops.

Other options like bleach are used primarily for lightening hair to a very light shade, and alcohol is not typically a component of hair coloring but is used for other purposes in barbershops.