What is the primary function of dry shampoo in hair care?

Dry shampoo is primarily designed to absorb excess oil from the scalp and hair, making it a popular choice for refreshing hair between washes. The formulation often includes ingredients like starch or silica that effectively soak up the oils produced by the scalp, allowing the hair to appear cleaner and less greasy without the need for water. This function is especially beneficial for individuals who may not have the time or ability to wash their hair daily.

In contrast, other options do not align with the primary purpose of dry shampoo. Moisturizing the scalp, setting hairstyles, and enhancing hair color are functions associated with different types of hair products. For instance, scalp moisturizers are intended to hydrate and nourish, styling products are designed to hold hair in place, and color-enhancing products focus on adding vibrancy or coverage to the hair color. Thus, while they all play important roles in hair care, they do not share the same function as dry shampoo.