Spearmint Oil (aromatherapy)

The oil obtained right from the field stills is known as natural spearmint oil. It is a pale olive or pale yellow, mobile liquid with a very warm, slightly green-herbaceous odor, penetrating and powerful, truly reminiscent of the odor of the crushed herb.
Spearmint Oil is used primarily in flavors for toothpaste, chewing gum, candy, mouthwashes, etc. where it has attained great popularity as a modifier for peppermint (e.g. “doublemint”, etc.).
Arctander, Steffen . Perfume and Flavor Materials of Natural Origin (p. 681). 

mentha spicata