What is the effect of heat on the curl pattern of hair?

Heat plays a significant role in altering the curl pattern of hair during styling. When heat is applied through tools like curling irons or blow dryers, it breaks the hydrogen bonds in the hair’s structure, which allows the hair to be reshaped. As the heat temporarily changes the molecular structure of the hair, it enables stylists to create or enhance curls.

Once the heat is removed and the hair cools down, the altered shape takes form, and the curls become set. This process is essential for creating long-lasting hairstyles, as the curls remain defined and styled until they are washed or exposed to moisture, which can revert them to their natural state. Understanding this aspect of thermal styling is crucial for effective hair management and achieving desired looks.