Nioxin 3D Styling ThermActiv Protector 150ml is a heat protectant for hair that leaves it looking shiny and protects against breakage. This heat protectant is perfect for all clients as a first step in protecting hair prior to styling. It protects each strand from breakage and leaves hair looking shiny with its LightPlex technology. What are the benefits and features of Nioxin 3D Styling ThermActiv Protector 150ml? Heat protectant for hair. Protects each strand from breakage. Leaves hair looking shiny. LightPlex technology. Who is Nioxin 3D Styling ThermActiv Protector 150ml for? To use, spray evenly through towel-dried hair and comb through. Blow-dry and flat iron hair for heat-activated protection. Style as desired. This product is recommended for anyone who wants to protect their hair from heat damage while leaving it looking shiny and healthy.