What should you avoid when using a flat iron on hair?

Using a flat iron on damp hair is something you should avoid because moisture in the hair can cause steam to develop when exposed to high heat from the iron. This steam can lead to hair damage, including breakage and frizz, as the heat can effectively "cook" the water within the hair strands. Additionally, using a flat iron on wet hair generally does not provide the desired styling results, as the hair will not straighten effectively and may end up looking uneven or limp.

On the other hand, using a flat iron on dry hair ensures that the hair is prepared to withstand the heat, allowing for a smoother, more effective styling process. Additionally, employing a heat protectant before using a flat iron is essential for safeguarding the hair from heat damage, and the right temperature setting is crucial for achieving desired results without harming the hair's integrity.