What is a consequence of excessive heat styling on colored hair?

Excessive heat styling can lead to increased fading of color in colored hair because high temperatures can break down the chemical bonds of both the hair and the hair color. Hair color often relies on a series of chemical reactions that are somewhat delicate. When hair is subjected to high heat, such as from flat irons, curling wands, or hair dryers, the protective outer layer of the hair can become damaged, which allows color molecules to escape more easily. This results in a lack of vibrancy and a quicker loss of the intended hue. Therefore, maintaining a balance between heat styling and protecting the integrity of colored hair is crucial to prolonging its vibrancy and overall health.