Swanson Oregano Oil Liquid Extract is a dietary supplement in the form of oregano liquid extract standardized to min. 3.5% carvacrol. 4 drops of the preparation contain 13 mg of oregano oil, including 0.45 mg of carvacrol. Know oregano oil Oregano ( Origanum Vulgare ), also called marjoram, is an aromatic herb that has been highly valued for centuries for its culinary and health benefits. The oil is obtained as a result of natural steam distillation. No chemicals are used during this process. It has a concentrated dose of active ingredients, so it should always be used diluted. Swanson Oregano Oil is an extract of oregano diluted in olive oil. Oregano naturally helps maintain a healthy immune system and upper respiratory tract health. In addition, oregano supports digestion and the health of the stomach and intestines. The Swanson Oregano Oil bottle contains 29.6 ml of a valuable ingredient of natural origin, allowing it to support the daily diet of adults. The formula does not contain alcohol and sugar.