This product is designed to help prevent frizz and protect against damage caused by heat styling from blow-dryers and straightening irons, as well as UV exposure. Created with a Thermal Shield Complex, a blend of silk protein, phytantriol and Vitamin E, the serum safeguards strands by adding a protective barrier of glossy shine to help prevent heat and UV damage while also sealing out frizz. In addition, it leaves hair smooth, silky and shiny.