This toothpaste is best for children of age 4 to 6 years old. Aquafresh Little Teeth Toothpaste - As your child gets older, their diet changes and their teeth may need extra protection against tooth decay. Aquafresh Little Teeth Toothpaste is made of a white and red stripe which, with regular brushing provides a protection boost for little teeth in children aged 4 to 6 years old. Little teeth toothpaste is sugar free and has a mild mint taste.