Cinnamon
Essential oils of cinnamon can kill bacteria. Peppermint and rosemary are popular for concealing bad breath, but cinnamon destroys oral bacteria that produce hydrogen sulfide (rotten egg smell). Good results are achieved with cinnamon gum. The tests show how it destroyed 50 percent of all oral bacteria and 40 percent of those that cause bad breath. The same purpose is useful with cinnamon tea too.
