PSI Barbering Practice Exam

Which type of hair is more susceptible to damage from chemical services?

1. Straight

2. Wiry

3. Curly

4. Mixed

The correct answer is: Wiry

Wiry hair is typically more susceptible to damage from chemical services due to its unique structure and texture. The thicker and coarser nature of wiry hair often means that it may have a more compact cuticle layer. This can lead to an increased likelihood of the cuticle being lifted or damaged during chemical treatments, such as perms or relaxers, which often require the cuticle to open to allow the product to penetrate the hair shaft. Moreover, wiry hair can be more resistant to moisture and may not hydrate as easily as other hair types. This resistance can make it more vulnerable during chemical processing because it may not respond as well to conditioning treatments, leaving it dry and brittle after the services. In contrast, straight, curly, or mixed hair types may have varying degrees of resilience or hydration that can help mitigate damage during similar treatments. Understanding this characteristic of wiry hair can guide a stylist in choosing the right products and techniques to minimize damage during chemical services, ensuring healthier results.