After studying the ingredients and speaking to some stylists in Brazil, I have decided not to do this procedure. It is a procedure that has caused death from exposure to the chemical ingredients. Not only are they toxic during the procedure the chemicals stay in your hair so you are exposed 24/7. I have included a link to a woman who has died from this cancer causing product.
Me in Brazil doing my research! BKT is basically a service done by the low end salons in Brazil. The nice salons don't touch BKT. as they say in Brazil "es muito mal"