Another example is antibacterial soap, in either bar or liquid form. Americans scoop up nearly $1 billion worth of these products a year, even though studies show they are no more effective than regular soap and water at reducing the spread of germs. These products contain two active ingredients—triclocarban and triclosan—that have been found in experiments to disrupt reproductive hormone activity and interfere with cell signaling activities, including in the brain and heart. Buyer beware!