The iWhite Dark Stains Whitening Toothpaste has been specially formulated to treat and prevent dark stains on the teeth, as well as provide visible whitening and fresher breath. Warning: Do not swallow the toothpaste. Not to be used by children under 12 years old. Avoid contact with eyes. Only to be used as directed. Contains sodium fluoride. Whitens only natural teeth. Discontinue use if you experience pain or excessive sensitivity. Use of the product is not advisable if you have allergic reactions to any of the ingredients. Store in a cool, dry place between 2 ° C and 25 ° C, away from heat and direct sunlight.