But some scientists are increasingly concerned that a common anti-bacterial ingredient called triclosan may harm people's health. Laboratory studies have found that it may disrupt hormones, interfere with muscle function and promote the growth of stronger bacteria and other research suggests it is building up in the environment to the possible peril of wildlife.
What's more, there is no evidence that hand-washing with soap containing triclosan or other anti-microbial ingredients offers any health advantages over regular soap and water, according to advisory committees for the American Medical Association and the U.S. Food and Drug Administration."