Look at the label. The active ingredient in most hand sanitizers is alcohol.
The real problem with hand sanitizers is that they will kill off the weak bacteria, but not the strong. In a few bacteria generations, we will have created the super bacteria that nothing will kill.
When I think of the situations I've been in with a sandwich in one hand and god only knows what in the other, my body must have anti-bodies that will kill anything.
We're raising a generation of wimpy people.