You probably didn’t know this, but Listerine was developed more than a century ago. And 100-years later, it still uses the same basic essential oils as its base – eucalyptus, thyme, and menthol.
And if you ever took a close look at the label, you’ll have seen that it says it’s an antiseptic which means it is an antimicrobial substance that can be applied skin or tissue to reduce the possibility of infection, sepsis, or putrefaction.