Yin Yang Old Japanese Plant Oil is a 100% vegetable extract obtained by pure distillation of a special variety of Mentha arvensis, the so-called Japanese mint. It is used for massages, to relieve headaches, muscle and joint pain. Inhaling this oil relaxes the respiratory tract during rhinitis and colds. For internal use, one drop is enough. Yin-Yang oil also has a beneficial effect on stomach, gallbladder and intestinal problems. Now we also have it in a practical Roll-On package!