West Virginia Cosmetology Board Practice Exam

The purpose of hair masks in hair care is to provide deep conditioning and restore moisture and nutrients to the hair. Hair masks are designed to penetrate the hair shaft and deliver intensive hydration, which helps improve the overall health and appearance of the hair. They often contain concentrated ingredients such as oils, proteins, and vitamins that work to repair damage, reduce frizz, and enhance shine.

Using a hair mask regularly can transform dry, brittle hair into healthier, more manageable locks. This treatment is particularly beneficial for those with chemically treated, curly, or heat-damaged hair, as these types often require extra care and attention to restore their natural moisture and strength.

In contrast, a temporary change in hair color is more accurately achieved through dyes or rinses, while cleansing the scalp is the function of shampoos. Removing product build-up typically requires a clarifying shampoo or specific treatments designed for that purpose, not a hair mask. Thus, the primary function of a hair mask is indeed to nourish and condition the hair deeply, making choice B the correct and relevant answer.