What should you avoid when using a heat styling tool on hair?

Using a heat styling tool on wet hair is something to avoid because moisture in the hair can cause steam to form when heat is applied. This steam can create excessive pressure within the hair shaft, leading to potential damage such as breakage, frizz, and split ends. Wet hair is more fragile and susceptible to damage, making it important to ensure the hair is completely dry before styling with heat tools. Dry hair allows the heat to be used effectively without introducing the risks that come with steam.

The other scenarios, while they may require special consideration, do not pose the same level of immediate danger. For example, there are heat styling tools and techniques designed specifically for use on dry and colored hair, provided the appropriate temperatures and products are utilized. Short hair can also be styled safely with heat tools as long as the proper precautions are taken.