Kohalt Niconin Dental Rinse 200ml Mouthwash This product is less irritating than typical mouthwashes, so it can be used by both children and adults. It can be used in combination with brushing and flossing to keep the mouth clean, and it's recommended because even just rinsing when you're in a hurry can temporarily prevent bad breath. ~From the product pamphlet~ You can use this product if your child can rinse their mouth on their own. Please refrain from using it on infants and toddlers under 4 years old.