Ammonium nonadecafluorodecanoate

Ammonium nonadecafluorodecanoate is a chemical compound with the CAS number 3108-42-7. It's a type of per- and polyfluoroalkyl substance (PFAS), which are a group of man-made chemicals that have been used in a variety of industries around the world since the 1940s.

This compound, like other PFAS, is known for its ability to repel oil and water, which can make it useful in certain cosmetic formulations to provide a desired consistency or finish, or to improve the product's durability and spreadability. It may also be found in household products such as non-stick cookware, stain-resistant fabrics, and water-repellent clothing.

Ammonium nonadecafluorodecanoate, due to its PFAS nature, might cause skin irritation or allergic reactions in some individuals, especially those with sensitive skin. PFAS have been associated with skin rashes and other dermal issues in certain exposure scenarios.

The broader category of PFAS chemicals, which includes Ammonium nonadecafluorodecanoate, has been associated with a variety of health concerns. These can include liver damage, thyroid disease, decreased fertility, high cholesterol, obesity, hormone suppression, and cancer.

In the California Assembly Bill No. 496, Ammonium nonadecafluorodecanoate is listed as one of the banned ingredients in cosmetic products effective January 1, 2025. This ban reflects growing concerns about the health and environmental impacts of PFAS chemicals. The prohibition extends to the manufacturing, selling, delivering, holding, or offering for sale of any cosmetic products that intentionally contain this compound among other specified ingredients.

Due to the associated health risks and its inclusion in the list of banned substances in California, the use of Ammonium nonadecafluorodecanoate in cosmetics and household products is becoming more restricted. Consumers, particularly those with sensitive skin, are advised to check product labels for this ingredient or its synonyms and exercise caution.