Here's Why It's So Hard to Know If Your Period Underwear Is PFAS-Free

By Claire Wolters | verywellhealth | January 23, 2023

Read the full article by Claire Wolters (verywellhealth)

"Period underwear brand Thinx settled a class action lawsuit last week regarding the presence of per-and polyfluoroalkyl substances (PFAS) in their products.

While Thinx advertised its products were free of harmful chemicals, Sierra reporter Jessian Choy was able to prove otherwise back in 2020 with the help of Graham Peaslee, PhD, a physics professor at the University of Notre Dame.

PFAS, often referred to as “forever chemicals,” can take years to break down and contain numerous harmful toxins that can cause health problems, including cancer.

News of the lawsuit is calling into question the safety of the materials in the undergarment. It’s also highlighting just how hard it is to know whether or not period underwear has PFAS."