Alterna Caviar Anti-Aging Professional Styling Perfect Iron Spray is a heat-activated spray that helps to provide protection against hot tools while helping to lock in moisture and block out frizz. This heat-activated spray is formulated with a blend of strengthening proteins and nourishing extracts that help to lock in moisture, helping seal and smooth the hair cuticle to minimize frizz and split ends, while also creating a barrier against humidity, helping to prevent styles reversion for sleek or curly locks. Comes from a smoke- and pet-free home!