Redseal Hairstyling License Practice Test

Which type of perm waves have very little odor?

1. Cationic waves

2. Ammonia-free waves

3. High pH waves

4. Exothermic waves

The correct answer is: Ammonia-free waves

Ammonia-free waves are designed to minimize the strong odor typically associated with traditional perming solutions. These waves use alternative alkalizing agents that are less pungent than ammonia, making the overall process more pleasant for both the stylist and the client. This is particularly significant in a salon setting, as strong odors can be uncomfortable and may deter clients from returning. In contrast, cationic waves tend to use cationic surfactants that can produce some odor but are more known for their conditioning properties rather than odor neutrality. High pH waves, while effective for creating strong curls, often contain higher levels of ammonia or similar chemicals that will emit a noticeable odor during the perming process. Exothermic waves also involve a reaction that generates heat, and while they can be effective in creating lasting curls, they may still carry the characteristic smell associated with traditional perm solutions. The low-odor characteristic of ammonia-free waves makes them a popular choice for clients who have sensitivities or simply prefer a less overwhelming experience during their salon visit.