
Hidden Hormone Disruptors in Menstrual Products: A Wake-Up Call for Women
Recent reporting in my home country of South Africa has drawn attention to a peer-reviewed study from the University of the Free State (UFS), published in Science of the Total Environment, which found endocrine-disrupting chemicals (EDCs) in commonly sold sanitary pads and panty liners (Blignaut et al., 2026). Although the research was conducted in South Africa, its relevance extends well beyond one country. Many menstrual product brands are manufactured and distributed internationally, including across the European Union. For all women, the findings are worth understanding. What are endocrine disruptors? Endocrine-disrupting chemicals are substances that interfere with the body’s hormonal system. Hormones regulate reproduction, metabolism, thyroid function, mood and development. Some EDCs can mimic oestrogen or block natural hormonal signals. The study examined three main groups of chemicals: Phthalates (plasticisers used in adhesives and flexible plastics) Bisphenols, including bisphenol A (BPA) Parabens (preservatives with weak oestrogen-like activity) These chemicals are common in consumer products and can migrate out of materials over time. What did the study find? Researchers analysed 16 sanitary pads and 8 panty liners and detected endocrine disruptors in every product tested. Key findings included: Phthalates in 100% of panty liners and 50% of pads Bisphenols in 100% of







