Which of the following is true about hydrogen peroxide in hair coloring?

Hydrogen peroxide is primarily known for its role as an oxidizing agent in hair coloring. When used in hair dye formulations, it serves to open the cuticle of the hair, allowing the hair color molecules to penetrate more deeply. This oxidation process is crucial because it enables the lightening of the hair's natural pigment and the development of the artificial color.

By breaking down the melanin in the hair, hydrogen peroxide effectively changes the hair's color and allows for more vibrant or varied shades achieved through hair dye products. It's a fundamental component in many permanent hair coloring processes, facilitating the transformation needed to achieve the desired results.

In contrast, while hydrogen peroxide may have some mild effects on the hair's surface due to its chemical properties, it does not function primarily as a conditioner, nor does it strengthen the hair or color it green; those attributes belong to other products or processes used in hair treatments.