Nevada State Board of Cosmetology Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Nevada State Board of Cosmetology Exam. Use flashcards and multiple choice questions, each with hints and explanations. Get confident for your test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Before giving a chemical wave, the hair should be?

  1. Blow-dried

  2. Analysed and shampooed

  3. Straightened

  4. Moisturized

The correct answer is: Analysed and shampooed

Before giving a chemical wave, it is important to first analyze and shampoo the hair. This is because when applying a chemical wave, the hair should be free of any product build-up or residue which may impact the effectiveness of the chemical solution. While blow-drying, straightening or moisturizing the hair may be part of some people's haircare routine, they are not necessary steps before giving a chemical wave and may potentially affect the results. Therefore, it is important to clean and prepare the hair by analyzing and shampooing it before giving a chemical wave.