N-Sul-A-Tion Spray Thermal Protectant is a revolutionary nonsticking thermal protectant that prevents hair damage by ensuring a clean release from hot styling tools. Essential nutrients work in concert with the heat of your blow dryer or tools to seal and protect the hair shaft, while adding volume and brushable softness. N-Sul-A-Tion is excellent when used with curling irons, hot and velcro rollers. On dry hair: Spray on desired amount, proceed to use curling iron, hot or velcro rollers. On wet hair: To add volume at the base, lift hair and spray between layers, style with tool of choice. To finish style: Hold 8-10 inches away from hair and spray in short bursts until desired firmness is achieved.