Peppermint is primarily known for its menthol. Menthol is monocyclic terpene alcohol that gives peppermint its characteristic cooling sensation and minty aroma. Menthol is widely used in pharmaceutical and over-the-counter products due to its various potential therapeutic effects. It has local anesthetic properties, which can help relieve minor pain and irritation. Menthol also acts as a vasodilator, promoting blood flow when applied topically. In addition to menthol, peppermint oil contains other bioactive compounds such as menthone, menthyl acetate, and limonene. These compounds contribute to the overall fragrance and potential therapeutic benefits of peppermint.