Let's start with what is DOESN'T taste like -- washing out mouth out with soap. That's right, it doesn't taste like soap. About 1% of our customers report that they have a slight "soapy" taste the first few times they try it, but they don't notice it after using it for a few brushes.
Tooth Suds are not "flavored" with artificial flavors, but they do contain essential oils (at safe dermal usage rates), giving them a mild flavor.