I found the following on this websitehttp://www.aboutkidshealth.ca/News/Clean-hands-for-better-health.aspx?articleID=10432&categoryID=news-poh4 Liquid, foaming, and bar soap are all effective for cleaning your hands, if used properly. The type of soap is not as important as the right technique. It is the soap combined with the scrubbing action that helps loosen and remove germs from your skin. The running water washes them away. Antibacterial soap isn't necessary, and may actually be harmful. A review of 13 studies found that the antibacterial soap that is sold to consumers is no better than ordinary soap at getting rid of bacteria on the hands, nor is it better at preventing illness. “As long as you’re washing your hands properly, antibacterial soap isn’t going to work any better than regular soap,” says Streitenberger. Furthermore, some studies in the lab have suggested that antibacterial soap could actually be helping to create drug-resistant bacteria. So until we know for sure, stick with ordinary soap – just be sure to keep it clean.