Contains no synthetic surfactants. The only cleansing ingredient is soap. Removes plaque and cleans the mouth to prevent cavities and halitosis. Also prevents deposits on the tooth enamel for whiter teeth. Our own yuzu seed extract is formulated as a humectant to provide suitable moisture for brushing and make the brushing process easier. Has little of the bitterness that characterizes most toothpaste, does not produce excess foam, and can be used for longer brushing without discomfort. The clean aroma comes from a combination of Japanese yuzu peel essential oil and mint (spearmint, peppermint).