Well Horse Sanitizer is a wound cleaner designed to be a Well Horse alternative to other popular water based products. Well Horse Sanitizer kills 99.999% of known bacteria as tested by FDA. It has a shelf live of 5 years and is effective if subjected to freezing or elevated barn temperatures. Use two or three times daily until the condition is eliminated. The difference between Well Horse Resin and Sanitizer products is that the Sanitizer kills the bacteria and allows the wound to heal naturally. The original Well Horse resin actually accelerates the natural wound healing process by as much as 10 times because it generates new collagen.