A slightly acidic cooling gel sheet that is gentle on the skin. Contains a cooling sensation that lasts in the gel. The cooling effect gradually takes effect and the cooling sensation lasts for 8 hours. It adheres tightly to your forehead and does not come off easily even when you turn over in bed. Use it when you have a sudden fever or have trouble sleeping at night. For adults, perfect for when and where you want something cool (such as severe fever, toothache, hot nights where it's hard to sleep, after sports, or exercise).