I was looking at those. I figured they were snake oil. My uncle always said rub dirt on a scrape or such and go about your business. Up until the 80s I found that dirt did not kill bacteria. Anyway they do work just not nearly as well as Clorox wipes.
Have no idea bout how hand sanitizer works. I will just keep washing my hands with Irish springs and keep my hands fresh and clean as a whistle. (if you remember that jingle you are old. Heck if you still call em jingles you are old.....I am starting to think I am old!)