For thermal protection from damaging styling irons that perfectly delivers both beautiful shine & firm hold, try the Neuro® Protect Heat CTRL® Iron Hairspray. Lustrous shine is achieved by hold agents that lock in sleek, gorgeous looks. Reduce frizz & block humidity with Heat CTRL® technology that lowers heat transfer from hair roots to ends. Blocks humidity for up to 8 hours.* * When using Neuro® Protect or Finish. Product was tested by an established, independent third-party laboratory.