Tom's of maine antiplaque & whitening fennel toothpaste is in a 5.5 oz. Fluoride tube. This formulation uses zinc citrate, sourced from zinc ?çö a naturally occurring mineral ?çö to clean, and xylitol and other natural ingredients to freshen and sweeten your breath. There are no artificial colors, flavors, fragrances or preservatives. This toothpaste was developed without animal testing, and it contains no animal ingredients.