Reusable feminine hygiene products often contain per- and polyfluoroalkyl substances (PFAS), according to a study published online on July 22 in Environmental Science & Technology Letters.
Study Details
Alyssa Wicks, Ph.D., from the University of Notre Dame in Indiana, and colleagues examined PFAS content in reusable feminine hygiene products in the United States and abroad. Fifty-nine reusable feminine hygiene products across five product categories underwent total fluorine screening via particle-induced gamma-ray emission spectroscopy.
Key Findings
The researchers found the greatest rates of intentional PFAS use (more than 110 ppm total fluorine) in period underwear and reusable pads (33% and 25%, respectively).
Nineteen of these products were selected for targeted analysis of 31 ionic and 11 neutral PFAS compounds. All extracted products (100%) contained PFAS, with the most abundant compounds being 6:2 and 8:2 fluorotelomer alcohols.
Tested products were sourced from North America, South America, and Europe, all of which had one or more items with levels consistent with intentional fluorination. At least one product in each category did not contain intentional fluorine.
Health Implications
Coauthor Marta Venier, Ph.D., from Indiana University in Bloomington, stated: “Since reusable products are on the rise due to their increased sustainability compared to single-use products, it’s important to ensure that these products are safe.”
She added: “This is crucial, especially for adolescents and young women, who are more vulnerable to potential negative health effects.”
This research raises concerns about the presence of PFAS—chemicals known for their persistence in the environment and human body—in products designed for intimate use. The findings suggest consumers may want to seek out PFAS-free alternatives and that manufacturers should consider eliminating these chemicals from reusable feminine hygiene products.