Hedd Wyn Essentials Oil of Oregano is produced from Certified Organic WILD Oregano (Origanum vulgare ssp. minutiflorum), hand picked in the Mediterranean wilderness. The Oregano leaves and flowers are steam distilled at low temperature and low pressure in stainless steel crucibles. Each batch of essential oil is numbered and then analyzed using Mass Spectography and Gas Chromatography. This rigorous testing assures that only the correct species of edible Oregano with high Carvacrol content is delivered to you in their Oil of Oregano. They guarantee their essential oil is pure & unadulterated. Carvacrol content is in excess of 80%. The complex synergy of natural plant chemistry is left as nature intended. Oregano is used to treat respiratory tract disorders, gastrointestinal (GI) disorders, menstrual cramps, and urinary tract disorders. The herb is also applied topically to help treat a number of skin conditions, such as acne and dandruf.