Missouri Board of Cosmetology Practice Exam

The first step before using any chemical treatment on a client is to conduct a strand test. This crucial procedure involves taking a small section of the client's hair and applying the chemical treatment to that strand to observe how the hair reacts. It helps determine the appropriate processing time, the strength of the chemicals to be used, and whether the hair can withstand the treatment without damage.

Conducting a strand test not only ensures that the chemical will achieve the desired result but also allows the stylist to assess the hair’s condition and porosity. This step is essential for tailoring the treatment plan to the individual client's needs, thereby enhancing hair health and achieving optimal results.

While assessing the client's hair type is important and can be part of the overall evaluation process, it is more about understanding the general characteristics of the hair rather than testing its reaction to the chemical. Consulting with other stylists can be beneficial for advice or second opinions, but it is not a standardized step in the chemical treatment process. Applying heat might be part of a treatment process but is not a preliminary action before using chemical treatments.