What is one benefit of using a round brush during blow-drying?

Using a round brush during blow-drying is particularly beneficial for creating volume and smoothness in the hair. The design of the round brush allows for the hair to be wrapped around it as you direct the heat from the blow dryer. As the hair is heated, the shape of the brush helps lift the hair at the roots, which adds volume and body to the style. Additionally, the bristles of the round brush smooth the hair cuticle, resulting in a shinier, sleeker finish.

While drying hair quickly is an important aspect of the blow-drying process, this isn't the primary benefit attributed to the use of a round brush; rather, its shape aids specifically in styling. Likewise, while round brushes can assist in straightening hair to some degree, the main focus is on volume and smoothness. Finally, although tight curls can potentially be achieved with a round brush, it is not the typical or primary use of this tool; instead, curling irons or smaller barrel brushes are generally more effective for creating tight curls.