Rareessence aromatherapy organic peppermint, botanical species: mentha piperita (var. Mitcham), origin: uk. Acknowledged as the best quality peppermint available, English peppermint is at the luxury end of the market. English peppermint is used for after-dinner mints and mint liqueurs, and offers a smooth and rounded oil. Peppermint oil is a great comforting aroma to be used to ease nausea, to refresh, or even as an insect repellent. Precautions: avoid polished wood. May cause bleaching of fabric. Do not use peppermint during the first 4 months of pregnancy, and with care thereafter.