This slightly minty, slightly spicy herb is actually a member of the mint family. When burned, its oil gives off a pleasant, calming aroma. In the kitchen, it's commonly used to add zest to Italian foods. NOW Oregano Oil Softgels contain a minimum of 55% carvacrol, the most widely researched active ingredients in oregano. Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish or shellfish ingredients.