What is a material that develops color only after reacting with hydrogen peroxide?

A dye intermediate is a crucial component in the hair coloring process. This material is specifically engineered to develop color only after it interacts with hydrogen peroxide. In the presence of hydrogen peroxide, dye intermediates undergo a chemical reaction, resulting in the production of larger dye molecules that create the desired color on the hair.

The process typically involves a two-step mechanism where the dye intermediates are first activated by oxidation from the hydrogen peroxide, leading to the formation of colored compounds. This transformation is what makes dye intermediates significant in achieving a lasting and vibrant hair color.

While other choices may relate to hair coloring in different capacities, they do not share this specific characteristic of requiring hydrogen peroxide for color development, making dye intermediate the correct choice for this question.