Wintergreen is a group of aromatic plants. The term “wintergreen” once commonly referred to plants that remain green (continue photosynthesis) throughout the winter. The term “evergreen” is now more commonly used for this characteristic.
Most species of the shrub genus Gaultheria demonstrate this characteristic and are called wintergreens in North America, the most common generally being the American wintergreen (Gaultheria procumbens). Wintergreens in the genus Gaultheria contain an aromatic compound, methyl salicylate, and are used as a mintlike flavoring
Wintergreen Essential Oil contains 85-99% of methyl salicylate the same active ingredient as birch and is beneficial in massage for soothing head tension and muscles after exercising. This is a key oil in the Raindrop Technique.