57 / 88 scientific evidence that they are any better than plain soap and water,? says janet woodcock, m.d., director of the fda's center for drug evaluation and research (cder). ?in fact, some data that suggests antibacterial ingredients may do more harm than good over the long-term.? what do you do if soap and water aren?t available? the cdc recommends using an alcohol-based hand sanitizer that contains at least 60 percent alcohol. specializing in
