Fend off the frazzle with Nioxin Therm Activ Protector, a heat-activated spray that protects your hair from the damaging consequences of heat styling. Formulated with LIGHTPLEX technology, its complex of polymers and conditioning agents provide light, balanced heat protection whilst preventing unwanted hair breakage. Lightweight with a non-rigid finish. - K.N. Directions for use: Spray evenly through towel-dried hair and comb through. Blow dry and flat iron hair for heat activated protection. Style as desired.