Which type of hair is typically more resistant to chemical processes?

Coarse hair is typically more resistant to chemical processes due to its thicker and denser structure. The individual strands of coarse hair have a larger diameter and a more compact cuticle layer, which can create a barrier that makes it more difficult for chemicals to penetrate. As a result, when undergoing chemical treatments such as coloring, perming, or relaxing, coarse hair often requires more powerful solutions or longer processing times to achieve the desired results. This resilience can be both an advantage and a challenge, depending on the service being performed. Understanding this characteristic of coarse hair is essential for cosmetologists when planning treatments and selecting the right products for their clients.