What type of brush is best for smoothing hair?

A paddle brush is best for smoothing hair due to its wide, flat surface and flexible bristles. This design allows for efficient detangling and the ability to glide through the hair, making it effective for creating a sleek and polished look. The shape of a paddle brush enables it to cover more surface area, which is particularly beneficial for straightening hair and reducing frizz.

While a round brush is commonly used for adding volume or creating curls, it is not the optimal choice for simply smoothing hair. Vent brushes are designed primarily for faster drying times and enhancing the flow of air while blow-drying, which may not provide the same level of smoothing. Teasing brushes, on the other hand, are specifically used for adding volume to the hair and creating texture, rather than achieving a smooth finish. Therefore, the paddle brush stands out as the best option for the task of smoothing hair.