Is your hair in need of protection from the damaging effects of heat styling? Moroccanoil Perfect Defense Heat Protectant is a dry aerosol spray that protects against the damaging effects of heat styling up to 450°F/230°C. This nourishing, argan oil and vitamin-fueled formula leaves hair shiny and nourished while providing rehydration for the hair. Perfect Defence is delicately fragranced with the signature Moroccanoil scent.