Numerous laboratory studies have shown oil of oregano supports immune health. But not all oil of oregano products aere alike. Natural Factors Organic Oil of Oregano is incredibly powerful, featuring at least 80% carvacrol – the constituent responsible for oregano’s activity. (Other products either don’t standardize for carvacrol or guarantee only 55–60%). As a result, Natural Factor’s formula delivers all the health benefits of the oil of oregano. Plus, it’s wildly crafted, organic, and steam distilled with no chemicals, and it comes in a convenient liquid form.