Which tool is typically used to blend hair extensions into natural hair?

The blending brush is specifically designed to seamlessly merge hair extensions with the natural hair, ensuring a harmonious look and preventing noticeable lines or demarcations between the two. Its bristles are typically fine and adaptable, allowing the stylist to work through different textures and lengths of both the extensions and the client's natural hair effectively. This tool can help create a more natural appearance by distributing the hair evenly and enhancing the overall style, making it essential for achieving a polished and cohesive finish when working with extensions.

While other tools, like a round brush and a flat iron, serve their own specific purposes in styling and smoothing hair, they do not possess the same capacity for blending extensions effectively. A wide-tooth comb is primarily used for detangling without disrupting the hair's natural curl pattern but does not facilitate the blending necessary for extensions. Hence, the blending brush stands out as the most appropriate tool for this particular task.