Kool N Soothe Migraine Cooling Gel Sheets 4 Pack Instant Relief bioavailable magnesium It features soft silicone bristles with just 1 It features soft silicone bristles on both sides to clean top and bottom teeth simultaneously Chondroitin: Chondroitin is a building block of cartilage that supports joint strength by helping to resist compression in the joint Type Cooling Gel Sheet Quantity 4 sheets per pack Cooling Duration Up to 8 hours continuous cooling Usage Apply to forehead or back of neck Refrigeration Not required Residue Residue free removal Skin Compatibility Suitable for most skin types Packaging Individual gel sheets in pouch Drug Free Non medical product Additional Uses Relieves hot flushes and high temperatures Avoid contact with eyes and nostrils