Bisphenol S is classified as a reproductive poison

Effective December 29, 2023, the Office of Environmental Health Hazard Assessment (OEHHA) has added bisphenol S (BPS) to the Proposition 65 list as a reproductive toxicant (female reproductive endpoint). The listing is completed through a "nationally qualified expert" mechanism and is based on a determination by the Developmental and Reproductive Toxicants Identification Committee (DARTIC) that the chemical has been clearly shown to cause reproductive toxicity in women.

Warning requirements for large BPS exposures will go into effect on December 29, 2024.





What is California Proposition 65

California Proposition 65, the Drinking Water Safety and Toxic Substances Enforcement Act of 1986, was issued in November 1986. Its purpose is to protect California residents and the state’s drinking water sources so that the water sources do not contain chemicals known to cause cancer, Birth defects or other substances harmful to reproductive development, and truthfully notify residents when such substances appear in products. Therefore, in theory, all products containing harmful substances are within the scope of its control, including but not limited to the following products: electronic and electrical appliances products, textile products, toy products, food contact materials, jewelry products, home decoration products, etc.



What is Bisphenol S (BPS)

Bisphenol S (BPS) is an analog of bisphenol A (BPA) and is often used as a substitute for bisphenol A.

Mainly used in the production of epoxy resin, phenolic resin, polysulfone resin and other plastic products, including tableware, beverage bottles, clothing, textiles, sports equipment and care products. In addition, BPS is also used in the dyeing of fabrics, color development of thermal paper, coating of food cans, coating of non-stick pans, and even in parts of some electronic products.

Although BPS was once considered a safe alternative to BPA, a growing body of research shows that it has widespread harmful effects on neuroendocrine function in animals. DARTIC's research found that BPS is as harmful to the reproductive system as BPA, and may even cause damage to female egg cells at lower doses.