Free of synthetic surface active agents. Only soap is blended as a washing ingredient. This toothpaste does not paralyze the sense of taste after tooth brushing. It removes plaque, keeps the inside of the mouth clean, and prevents decaying and bad breath. It also prevents calculus deposits, which cause plaque to form, and whitens teeth. Two kinds of natural essential oils, Japanese peppermint and spearmint, are blended as flavoring ingredients. It refreshes the inside of the mouth and leaves a fresh flavor and scent in it.