Wintergreen Oil

Wintergreen oil is a natural flavoring derived from the leaves of several species of the genus Gaultheria, most commonly the Eastern teaberry. The oil is extracted through steam distillation of the leaves, which are first macerated in warm water. The primary active component is methyl salicylate, which gives wintergreen its characteristic strong, minty aroma and flavor.

Wintergreen oil is primarily used as a flavoring agent in a wide variety of food products, especially candies, chewing gum, and beverages. Its potent minty taste makes it popular for imparting a refreshing sensation. It is also sometimes used in toothpaste and mouthwash for its flavor and perceived freshening properties.

Wintergreen oil, primarily due to its methyl salicylate content, is recognized as safe by the FDA when used as a flavoring. It is generally regarded as safe (GRAS) for its intended use. High concentrations or ingestion of large amounts of methyl salicylate can be toxic, causing symptoms like nausea, vomiting, ringing in the ears, and in severe cases, seizures or coma. However, the amounts used in food are very small and considered safe. JECFA and EFSA have evaluated methyl salicylate and found it safe at typical dietary levels.