For thermal protection from damaging styling irons that perfectly delivers both beautiful shine and firm hold, try the Neuro™ Protect HeatCTRL™ Iron Hairspray. Lustrous shine is achieved by hold agents that lock in sleek, gorgeous looks. Reduce frizz and block humidity with HeatCTRL™ 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.