Tom's of Maine is marking an anniversary -- 25 years ago its team developed Silly Strawberry Natural Children's Toothpaste, and its been a favorite among parents ever since, the brand says.

It is the No. 1 natural children's toothpaste, according to SPINS, and is made without artificial colors, flavors, sweeteners or preservatives. It contains naturally-derived, great-tasting ingredients including real strawberry extract.

Shortly after the product was launched, it received the American Dental Association seal of approval. It is available with flouride and flouride-free formulas.

Creating a taste that kids would like using only naturally-derived ingredients was no easy task. "Silly Strawberry is really innovative in its approach to taste," said Tom's of Maine co-founder Kate Chappell, who played a key role in the product's research and development in 1992. "We knew kids preferred fruit flavors to minty or 'spicy' adult options, so we experimented to ensure the bright fruit flavor stood out. I'm extremely proud we succeeded in developing a naturally-flavored, effective toothpaste children would want to brush with, while avoiding unnecessary or artificial ingredients."

Paul Jessen, senior brand manager at Tom's of Maine, adds, "Getting little ones to brush their teeth can be just as much a trying task today as it was 25 years ago. The great taste of Silly Strawberry was certainly key to building good brushing habits with my own kids, and I love that the 'Silly Brushing Song' helps parents encourage those habits even more."

The brand enlisted children's singer and songwriter Laurie Berkner to help create the "Silly Brushing Song (Brush 'Em Up)," which is available as an interactive, online resource to help make brushing fun.

Tom's of Maine gives 10% of its profits back to helping people and the planet.