Wisconsin Cosmetology Practice Exam

Using a cap in hair coloring serves the primary purpose of ensuring even application of the hair dye and preventing staining of the skin. When applying hair color, especially in techniques like highlighting, the cap allows for precise placement of color while minimizing the risk of dye seeping onto the scalp or surrounding skin areas. This is particularly beneficial when working with lighter colors or when using multiple shades, as it helps to maintain a clean and controlled application process.

While there are other practices and products that can enhance volume, warmth during processing, or vibrancy of the color, the specific function of a cap is fundamentally linked to achieving an even distribution of color and protecting the skin from potential stains.