MENTAL FOCUS CPTG PEPPERMINT-When ingested, promotes healthy respiratory function and clear breathing. Promotes digestive health when taken internally. Repels bugs naturally. Peppermint has high menthol content of the doTERRA Peppermint essential oil sets it apart from others when it comes to quality—making it one of the best-selling favorites among doTERRA essential oils. Belgian CALLEBAUT Dark and White Chocolate.