A client’s lightening service took the maximum amount of processing time recommended by the product’s manufacturer. What is the most likely reason for the additional processing time? 

The process in which the hair is pre-lightened and then toned is known as ___________. 

When adding natural highlights to brunette hair, what is the maximum number of levels the highlighted pieces should be lightened above the balance of the hair? 

What do cosmetologists use to identify the degree of darkness or lightness of natural and artificial hair color? 

Which hair type will take the longest to process? 

Which of the following accurately describes a step in the process of mixing and applying haircolor? 

A bacteria produces beta-lactamases. Which of the following antibiotics would be most effective?

Cosmetologists should recommend that clients take which of the following steps to preserve moisture after a soft curl perm? 

A client who is considering a chemical relaxer service frequently consumes highly caffeinated beverages. Why does this matter? 

For which of the following patients is Arestin contraindicated?