Similar to the beauty and personal care industries, there is no one definition of ‘clean’ or ‘natural’ in the oral care space. But there are some general things to keep in mind when choosing products. “To us, natural oral care is all about caring for your mouth and body by using solutions that are naturally derived and maximize the best of what nature has to offer, rather than relying on chemically-produced ingredients,” explains Tara Tan, the founder and director of Grin, a natural oral care brand. This means more natural flavors, less preservatives, reduced foaming agents, and ethically sourced alternative ingredients.