Protect your hair from the damaging effects of heat styling with Nioxin 3D Styling Therm Active Protector. Specially designed for thinning hair, this lightweight thermal shield not only protects your hair from the harmful effects of heat tools, such as flat irons and blow dryers, but also helps create fuller, thicker-looking hair. Infused with advanced Nioxin technology, this spray helps strengthen each hair strand, reduce breakage, and add a layer of defense against environmental stressors.