It composes about 10% of the medication. Menthol is also another organic compound that is extracted from mint. The chemical formula for menthol is C10H20O. Menthol is an ingredient that gives off a cooling sensation by stimulating the cold receptors of the body and it also “act as a mild anesthetic”. This ingredient also is solid at room temperature but liquefy slightly above room temperature which means that at the touch of the skin it will liquefy. This temperature reducing ingredient is what makes one feel the cooling sensation when a patch is placed in our back, neck, or