How can heat styling tools damage hair?

Heat styling tools can damage hair primarily by causing moisture loss and weakening the hair structure. When heat is applied to hair, it affects the internal structure of the hair shaft, leading to the breakdown of protein bonds that provide strength and elasticity. This exposure to high temperatures can strip the hair of its natural moisture, resulting in dryness, brittleness, and an overall unhealthy appearance.

Additionally, the loss of moisture can make hair more susceptible to breakage and split ends. Furthermore, frequent use of heat styling tools without protective measures can exacerbate these issues, leading to long-term damage that is often difficult to repair. Protecting hair with heat protectants and limiting the use of high-heat styling tools are essential practices to help maintain the health of the hair.