Redken Thermal Spray 11 Low Hold Heat Protection Spray Bought directly from Salon Centric. Used once. For touchable shape with flat irons and curling irons This lightweight spray protects your hair from flat irons and curling irons up to 450 degrees while adding shine and reducing frizz. Its clean, lightweight formula won't leave your hair stiff or sticky. BENEFITS Lightweight thermal spray protects hair from heat up to 450ºF/232°C Boosts shine Adds clean-feeling, touchable hold With Heat Restyling Technology so you can apply once and restyle endlessly Ideal for use with flat-irons and curling irons