Mullein Herbal Oil is a dietary supplement recommended for the treatment of ear infections and also for various skin conditions. Mullein has a long traditional use as a medicinal plant, and some laboratory tests backed up some of its benefits claims. Nonetheless, clinical trials are very limited therefore we do not know for sure how effective the formula is. Also, we were not able to find online customer testimonials, but in our opinion, one of the main reasons might be that Mullein Herbal Oil is not available in many online stores. We recommend using Mullein Herbal Oil only for short periods of time and in small amount since scientists have not sufficiently studied the herb.