Read the full article by Katie Kindelan (Good Morning America)

Human-made chemicals known as PFAS are back in the spotlight after the feminine hygiene company Thinx settled a class-action lawsuit earlier this month for millions of dollars.

The lawsuit was brought against Thinx by customers who claimed testing showed the brand’s period underwear — advertised by the company as sustainable, organic and reusable — contained PFAS, otherwise known as per- and polyfluoroalkyl substances, or forever chemicals…

…Thinx settled with the five plaintiffs late last year for up to $5 million, but a recently-launched website has reignited interest in the case and restarted the conversation on what consumers need to know about PFAS.

The website,, shares details on who is eligible to file a claim to be able to receive part of the settlement money.

Here is what to know about the Thinx settlement and the allegations over PFAS.

An article published in 2020 by Sierra magazine first brought attention to the ingredients in Thinx products.

The article’s author, Jessian Choy, had Thinx menstrual underwear and a similar product from another brand tested by Dr. Graham Peaslee, a physics professor at the University of Notre Dame, whose research focuses on PFAS.

Peaslee found the presence of PFAS in the Thinx products at ‘high levels,’ ‘especially on the inside layers of the crotch,’ according to Choy’s article.

Following the article’s publication, several lawsuits were filed against Thinx, and eventually those cases were merged into the one class-action lawsuit against the company that was settled last year.”…