What is the main function of using enough tension in hair pressing?

Using enough tension in hair pressing serves the crucial purpose of achieving a smoother result. When adequate tension is applied during hair pressing, the hair cuticles lie flat, enabling the heat from the pressing tool to evenly distribute and effectively straighten the hair. As a result, this process minimizes frizz and enhances shine, leading to a polished and sleek appearance.

The technique of incorporating tension is essential for controlling the hair's texture and ensuring that the straightening or smoothing effect lasts longer. Insufficient tension can lead to unevenness and a less polished finish, which may not meet the desired styling results.

The other options, while they may relate to certain aspects of hair styling, do not directly address the primary function of tension in the context of hair pressing. For example, while tension can aid in curl retention, it is fundamentally about achieving smoothness that takes precedence in this specific technique.