Triclosan is still allowed in toothpaste. Here's what you should know

The chemicals in your toothpaste can accumulate on your toothbrush — and even after you change to a different brand, the original chemicals can stick around, a new study found.

Researchers examined the antibacterial compound triclosan, which federal authorities banned in over-the-counter products like antibacterial soaps and gels in 2016 after manufacturers were unable to prove it was safe for long-term use or more effective at preventing infection spread than soap and water.