- Redken Pillow Proof Blow Dry Primer Spray is a lightweight hair primer that cuts blow-dry time down and offers heat protection for up to 450 degrees. This heat protectant spray is perfect for all hair types, especially damaged hair, to help prevent hair breakage and protect from heat from blow-drying or other heat styling tools. Pillow Proof Blow Dry Spray gives hair 24-hour lasting volume and 3X stronger and healthier hair. Protect and prime hair prior to using heat stylers like blow dryers, straighteners, curling irons, and more.