This cool and refreshing herb is full of antioxidants and oils, such as menthol, said to support cognitive function and concentration. Best if brewed at 170°. Ingredients: peppermint leaves Packaging: Our loose teas are sold by the ounce and are packaged in food-grade resealable bags. Note: Some plants can have unintended interactions with prescription medications. Please consult a doctor or pharmacist before use.