All natural. Caffeine free. Did you know: Originally used for it's oil, peppermint has been employed as a flavoring and therapeutic agent. Peppermint is helpful for many stomach ailments and promotes good digestion. Peppermint has a calming effect, and may aid in reducing anxiety. Peppermint has a long history of traditional use spanning the entire globe and today it is one of the most widely used tea ingredients. The ancient Greeks and Romans crowned themselves with peppermint at their feasts.