Stop putting fingers in your mouth deterrent treatment nail polish. Works effectively for kids or adults to help allow nails to grow healthier and discourage putting fingers in your mouth. Keep your nails healthy, strong, and nice looking. Mavala stop treatment nail strengthener helps keep hands out of the mouth to prevent the spread of germs and keep up your nail care. Effective kids nail polish with an easy, no fuss, brush-on application. The bitter yet harmless taste and the appearance of clear enamel help discourage you from putting fingers in your mouth. Safe for children and great for adults and teenagers of all ages. Recommended by dentists, orthodontists, and pediatricians nationwide to discourage putting fingers in or near your mouth and to repair damaged or chewed nails. The Mavala stop nail-biting treatment for kids and adults will discourage putting fingers in your mouth for healthy manicure ready hands. Dries with the appearance of clear, shiny enamel. Item expires after 24 months once the product is opened.