These chemicals have been linked to liver damage, harm to the immune system, developmental issues, and cancer, and can persist in people's bodies and in the environment for many years. The researchers found that several types of dental floss contained fluorine, which indicates the presence of PFAS compounds.

Which dental floss has PFAS?

Women who said they flossed with Oral-B Glide floss had higher levels of a PFAS called perfluorohexane sulfonic acid (PFHxS) in their blood than those who didn't, researchers reported Tuesday in the Journal of Exposure Science & Environmental Epidemiology.

What floss has no PFAS?

We're not going to lie: it's going to be tough to find a plastic-free option at a drugstore, but Radius does offer a biodegradable, natural silk dental floss that is not treated with PFAS and can be found at health stores and some drugstores.