Brazilian Blowouts Still a Danger, Says EWG

“When it comes to the hair-straightening treatments known as the Brazilian Blowout or keratin smoothing formula, the Environmental Working Group is not giving up the cause. Four years after it first published a report on the dangers of such treatments, the nonprofit organization is releasing an article today charging that the treatments still contain as much as 7 percent formaldehyde, a toxic chemical that the U.S. government in 2011 designated a known human carcinogen.” Read more at WWD.