KIN JUNIOR Anticavity Toothpaste, Gentle Mint by KIN. Preventive care against childhood cavities should start with the eruption of the first teeth to keep the mouth healthy. This toothpaste blends fluoride with xylitol to provide daily protection and care for children aged 6 to 12. Its formula delivers anti-plaque, anti-cavity, and enamel remineralization actions. Do not ingest. Gluten-free.