California State Board Barber Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Dry and brittle hair is typically more susceptible to damage due to its lack of moisture and natural oils. When hair is dry, the cuticle, which is the protective outer layer of the hair strand, can become rough and more prone to breakage. This type of hair is often insufficiently nourished, leading to a weakened structure that makes it less resilient to environmental factors, heat styling, and chemical treatments.

In contrast, oily hair may have a natural protective barrier due to the sebum produced by the scalp, providing some resilience. Thick hair often has a more robust structure, which can withstand more manipulation without as much risk of damage. Fine and silky hair, although it can also be fragile, typically retains moisture better than dry hair, which helps to protect it from breaking. Thus, dry and brittle hair stands out as the type most at risk for sustaining damage.