The use of heat in haircare has many benefits such as helping to infuse moisture, styling the hair, and creating manageability to just about any hair type. There are many popular tools to help as well. Flat irons, blow dryers, sit-under dryers, hot combs, and hair steamers are used weekly in hair routines for various reasons. As wonderful as heat use can be, beware! There can also irreversible damage that comes along with improper or prolonged heat use. The video above answers these popular questions like, what happens when I apply heat to my hair (the science)?