Colorado Cosmetology Written Practice Exam

What is the primary characteristic of an acid wave?

1. High pH

2. Medium pH

3. Low pH

4. Neutral pH

The correct answer is: High pH

An acid wave is a type of chemical treatment used for perming hair. It utilizes an acid-based solution that breaks the bonds in the hair, allowing it to be reshaped into curls or waves. The primary characteristic of this solution is a high pH level. This is because the higher the pH, the more acidic the solution is, and the more effective it is at breaking the bonds in the hair. This is why options B, C, and D are incorrect. A high pH is needed for the acid wave treatment to work, making option A the correct answer. Medium, low, and neutral pH levels would not be strong enough to break the bonds in the hair, resulting in a less effective perm.