Joico Heat Hero Glossing Thermal Protector is a hold-level-3 spray formulated to shield hair from thermal styling tools up to 450°F (232°C) while adding gloss. Heat-deflecting polymers create a barrier against blow dryers, flat irons, and curling irons, moringa seed oil contributes antioxidants and vitamins A and E, and the formula is also positioned to help guard hair against environmental pollution and reduce the look of split ends. Unlike a protectant meant only for use before styling, Heat Hero is designed to go on twice: once on dry hair ahead of heat tools, and again afterward to finish the style with extra shine and light hold. The aerosol formula is paraben-free. It's built for those who regularly reach for hot tools and want added shine and heat defense, rather than for anyone seeking a strong-hold finishing spray.