Toothpaste-gel against caries, which is designed to provide teeth of children with the necessary amount of fluoride, for effective protection. The patented fluorescent molecule Fluorinol, bounds strongly and quickly in the enamel of teeth from the first minute of brushing. Due to the combination of a protective film, dimethicone, fluorine is maintained longer in contact with the tooth enamel thus contributing, even after brushing, to a better protection.