Kansas Barber Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

The flat iron is the most commonly used tool for straightening hair because it is specifically designed for this purpose. Flat irons use heating plates that can reach high temperatures in order to smooth and straighten hair effectively. When hair is passed between the heated plates, the heat changes the structure of the hair, allowing it to lay flat and appear sleek. This process can create a polished look that lasts for several hours or even throughout the day, making flat irons incredibly popular in both professional salons and at-home styling.

While curling irons are designed to create curls or waves, they are not suitable for straightening hair. Blow dryers can assist in straightening when used with a round brush, but they do not offer the same level of effectiveness as a flat iron. Scissors are primarily used for cutting hair and do not serve any purpose in the straightening process. Hence, the flat iron stands out as the essential tool for achieving straight hair.