The spearmint plant is native to Europe but is now common in North America and Asia. The U.S. is the major producer of Spearmint essential oil, which is steam distilled from the fresh flowering tops. Spearmint has traditionally been used as an aromatic, stomachic, stimulant, antiseptic and local anesthetic. It has an uplifting effect on the nervous system and is used to treat acne and congested skin. Its most common use at this time is as a flavoring in toothpastes, chewing gum, candy and mouthwashes.