No, it does not damage hair. Babyliss Pro comes with different technologies to choose from. It’s important to check your hair type and intended use before choosing the right tool. The curling tool by Babyliss has a nano titanium curl chamber and works by attracting the hair strand. The heat is evenly and gently applied to the hair without damaging it. Some of them even come with a built-in ionic generator which releases a lot of negative ions to control frizz and helps in sealing the natural moisture and nourishment of your hair. It even keeps the tresses soft, smooth and shiny. This technology is suitable for thin and fine hair as well.