Research carried out by the French magazine 60 Millions de Consommateurs revealed in 2016 that 5 of 11 products tested contained traces of dioxins, insecticides, or other undesirable chemicals. Traces of halogenated waste, a by-product of manufacturing, were found in Tampax Compak Active Regular Fresh tampons and residues of organochlorine pesticides and pyrethroid insecticides were found in some Always sanitary towels. These manufacturers said the results were a "mistake" and blamed the testing process itself. Traces of dioxins were found in o.b. and Nett brand products. Surprisingly, the researchers also found traces of glyphosate (the chemical in Roundup weed killer) in organic cotton sanitary towels made by Organyc. The company, who noted that organic cotton should be free from this herbicide, confirmed the results through their own tests and chose to voluntarily recall a batch of 3,100 boxes of sanitary towels on sale in France and Canada. Organyc said they would initiate comprehensive testing of their raw materials from their cotton suppliers, who are primarily based in the U.S. and India.