The regulation of nanocosmetics varies by region. In the European Union, for example, the Cosmetic Regulation (EC) No 1223/2009 requires manufacturers to notify the European Commission if their products contain nanomaterials. The U.S. Food and Drug Administration (FDA) also provides guidance on the use of nanotechnology in cosmetics but does not have specific regulations exclusively for nanocosmetics. Manufacturers are encouraged to conduct thorough safety assessments and provide transparent labeling for consumers.
