 | NSF Fact Sheet for Fluoridation Chemicals - - NSF (National Sanitary Foundation, International) is the body that regulates U.S. fluoridation chemicals. NSF has compiled data on the level of contaminants found in all fluoridation products (Antimony, arsenic, barium, beryllium, cadmium, chromium, copper, lead, mercury, radionuclides, selenium). [PDF. |