The best I've ever used.
As a letter carrier for the USPS for many years, I was looking for the best. I have had many skin issues for the last ten years. Even had to have MOHS surgery. Every year I've had to have keritoses burned off my face. After seeing this rated number one in a popular consumer magazine, I bought it and my last visit to the dermatologist was the first time in years I had a perfect checkup.  No problems! I highly recommend this product. It actually has several Marvel labels.
Rating: 5 stars