The instant you spray Joico Heat Hero Thermal Spray on, this brilliant hair guardian springs into action, protecting each strand from the thermal assault of blow-dryers, flat irons, and other damaging heat-styling tools. Along with it? A healthy, glossy sheen that fortifies strands and locks out hair-dulling pollutants.

How to use: Spray on dry hair before using a hot tool. Reapply after styling to finish and add hold.