Pennsylvania Cosmetology Practice Exam

Acid wave is a type of hair perm that uses acid and heat to create curls. It is also commonly referred to as a "heat wave" because of the use of heat during the process. Options A, B, and D are incorrect because they do not involve the use of acid or heat in the process. Cold waves, for example, use an alkaline solution and do not require heat to create curls. Hot and neutral waves also use different chemical solutions and do not involve the use of acid or heat. Therefore, the most appropriate alternative name for Acid Wave is heat wave (option C).