Arizona Cosmetology Practice Exam 2024 - Free Cosmetology Practice Questions and Study Guide.

The Alkaline Wave process requires no tension with swelling of the hair in order to enhance curl formation. This is because the Alkaline Wave process uses a chemical solution that breaks down and reforms the hair's protein bonds. By applying this solution without tension, the hair's natural structure is able to swell and re-form into a curly shape. Choosing a lower temperature (option A) would hinder the chemical reaction, resulting in a weaker curl. Adding protein (option B) is not necessary as the chemical solution already breaks down and reforms protein bonds. Direct sunlight exposure (option D) would not have an effect on the curl formation. Therefore, no tension with swelling of the hair (option C) is the only correct option.