PSI COSMETOLOGY PRACTICE EXAM (100 Questions with 100% Correct Answers)

When using a chemical relaxer, which of the following must you avoid using? - bleaches or high-lift color products All of the following are reasons to perform a strand test EXCEPT - to determine the type of shampoo that is best for the hair When using a chemical relaxer, it changes the shape of the hair by breaking down which of the following? - disulfide bonds When preparing for a virgin relaxer application, which of the following would be done FIRST? - performing test for elasticity and porosity Which of the following is the term for a permanent wrap when it is wrapped from the ends to the scalp in overlapping layers? - croquignole perm wrap In a relaxer, which of the following active ingredients has a 9.6-10.0 pH? - ammonium thioglycolate When anaylizing the hair before a chemical relaxer, it is necessary to evaluate the hair for all of the following EXCEPT - color