Methyl salicylate, also known as wintergreen oil, is an organic compound with the chemical formula C8H8O3. It is naturally found in certain plants, particularly in the leaves of the wintergreen plant (Gaultheria procumbens), from which it can be extracted. Methyl salicylate is well-known for its pleasant, minty aroma and is often used as a flavoring agent in food products, as well as a fragrance in various cosmetic and personal care products.

One of the distinctive properties of methyl salicylate is its ability to produce a cooling sensation on the skin when applied topically. This cooling effect, combined with its pleasant odor, makes it a popular ingredient in topical analgesic products, liniments, and muscle rubs for relieving minor aches and pains. It is often used in over-the-counter pain relief ointments and creams. Methyl salicylate is also utilized in some oral care products, such as mouthwashes, due to its flavor and potential antiseptic properties. However, it is important to use products containing methyl salicylate in moderation, as excessive topical application can lead to skin irritation or adverse effects if ingested.