There’s one rule when you expose your hair to heat, the hair must be protected. TRESemme Care & Protect Heat Defence Spray guards against heat styling tools up to 230 degrees celsius, keeping your hair shiny and incredibly soft. TRESemme Care & Protect Heat Defence Spray professional quality formula helps protect hair from damage while blow drying and heat styling. Contains a heat activated complex to help protect hair when drying and straightening. Helps prevent hair becoming brittle and dull, with continued use prevents up to 82% less breakage.