Diethanolamine Perfluorooctane Sulfonate (CAS no. 70225-14-8) 

Definition
Diethanolamine perfluorooctane sulfonate (DEPFOS) is a synthetic compound which is a derivative of perfluorooctane sulfonic acid (PFOS). It's formed by reacting diethanolamine with perfluorooctane sulfonyl fluoride.

Usage in Cosmetics and Household Products
Diethanolamine perfluorooctane sulfonate is not commonly found in cosmetics. However, its parent compound PFOS and related substances have been used for their water- and grease-repellent properties in a variety of household and industrial applications, including in stain repellants, and non-stick coatings on cookware.
Other Names/Synonyms
There are no well-known synonyms for Diethanolamine perfluorooctane sulfonate, but it may be abbreviated as DEPFOS.

Skin Sensitivities and Allergies
There is limited data available on the skin sensitivities and allergies specifically caused by Diethanolamine perfluorooctane sulfonate. However, related per- and polyfluoroalkyl substances (PFAS), including PFOS have been associated with skin irritation and other health issues.

Other Risks
The broader family of per- and polyfluoroalkyl substances (PFAS) to which Diethanolamine perfluorooctane sulfonate belongs has been associated with a variety of health risks. These include potential liver toxicity, disruption of lipid metabolism and the immune system, and potential carcinogenic effects.

Regulatory Ban
In California, Assembly Bill No. 496 (Chapter 441) has listed Diethanolamine perfluorooctane sulfonate along with other per- and polyfluoroalkyl substances (PFAS) as banned ingredients in cosmetic products effective January 1, 2027. The legislation reflects growing concern about the health and environmental impacts of PFAS compounds.

Conclusion
The inclusion of Diethanolamine perfluorooctane sulfonate in the list of banned substances in cosmetic products in California underlines the potential risks associated with this compound and related PFAS substances. Consumers, especially those with sensitive skin, should exercise caution and look for products free from PFAS compounds to minimize potential health risks.

How safe is it?

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