Toothpaste?

For something that 69 percent of people put in their mouth at least twice a day, toothpaste is surprisingly toxic. While traditional toothpaste is effective at removing and preventing plaque build-up, preventing cavities, and fighting gum inflammation, a lot of its ingredients are not safe.

The most common reason parents call Poison Control is because their child has swallowed (or intentionally eaten) toothpaste.