ProVent Motion Sickness Oil Roll-On, 0.08 fluid ounce (2.5 mL). ProVent Motion Sickness Oil is an incredibly effective, all-natural motion sickness treatment. The symptoms of motion sickness begin in the inner ear. When ProVent Motion Sickness oil is applied behind each ear lobe, the oils active ingredients calm the mind and inner ear, quickly helping relieve your symptoms. ProVent Motion Sickness Oil successfully treats occasional motion sickness or works to stop the symptoms after the fact. Active Ingredients: Raphanus Sativus (Radish) Seed Oil, Lavandula Angustifolia (Lavender) Oil, Mentha Piperita (Peppermint) Oil, Cananga Odorata (Ylang-Ylang) Flower Oil, Boswellia Caterii (Frankincense) Oil, Zingiber Officinale (Ginger) Root Oil