@navigator,
Warm water and a mild soap is just as effective at cleansing hands of bacteria as antibacterial soap or hand sanitizer, and without their dangerous side effects. Antibacterial soap products contain chemical ingredients, such as triclosan and triclocarban, which may carry unnecessary risks given that their benefits are unproven.
In fact, in our rush to embrace antibacterial cleaning products that allegedly keep us from getting sick, we may actually be minimizing the natural contact our immune system would have with them—contact that’s necessary for our bodies to develop natural immunities and antibodies that really keep us healthy (this is called the hygiene hypothesis.)