Brazilian hair straightening

Brazilian hair straightening treatments (also called Breezilian Brazilian Keratin Treatment, BKT, Brazilian Blowout, Escova Progressiva, Keratin Cure or Keratin Straightening) are a method of temporarily straightening hair by sealing a liquid keratin and a preservative solution into the hair with a hair iron. It has been banned in several countries including Canada and the European Union due to high concentrations of regulated chemicals in them. It is performed in the United States, though there are regulations and have been controversies regarding the treatment.