What should be manipulated to prevent tangling during a hair service?

To effectively prevent tangling during a hair service, it's essential to manipulate the hair itself rather than focusing on the scalp, styling products, or the hairbrush. Proper handling and technique when working with the hair—such as using the right products for the hair type, sectioning the hair appropriately, and employing gentle combing or brushing techniques—are critical. This ensures that the strands are not intertwined or knotted, which can lead to tangles.

While the scalp can affect overall hair health and the way hair behaves, it is the hair that directly interacts with brushes or tools during styling. Similarly, while certain styling products can provide slip and manageability, they don't address the mechanical aspect of tangling directly caused by how the hair is handled. The hairbrush is also an important tool, but improper use can lead to more tangles rather than preventing them.

Thus, the most effective approach for preventing tangles is to manipulate and manage the hair correctly during the service.