doTERRA peppermint oil is an invigorating, energizing, and certified pure therapeutic grade (CPTG) oil that can be used orally, topically, and aromatically. Peppermint oil improves circulation, oxygenation, and an promotes an overall sense of well being and energy. Peppermint can be used to soothe an upset stomach, reduce fever, cool sore muscles, and improve digestion. Come get your free sample in the FUEL UP store for the month of October!