What is the first step in the hair color application process?

Conducting a patch test for allergies is crucial as the first step in the hair color application process because it helps ensure the safety of the client. This test is performed to check for any allergic reactions the client may have to the ingredients in the hair dye. Since hair color products often contain various chemicals, some individuals may experience sensitivity or allergies. By conducting this test a few days before the actual hair coloring, the barber can identify any potential risks and avoid serious allergic reactions that could lead to discomfort or health issues for the client.

Choosing the appropriate color, mixing the hair color components, or applying the dye directly come after ensuring that the client has no allergic reactions. These steps are necessary for achieving the desired results but should only be undertaken after the patch test confirms that it is safe to proceed.