NPR Health Blog
September 8, 2011
Nearly a year ago, we warned you that a popular hair product which turns frizzy locks smooth and luxurious may be endangering the health of the salon workers who use it. Well, now the Food and Drug Administration has made it official.
The FDA issued a warning letter to the makers of Brazilian Blowout saying their product contains dangerously high levels of formaldehyde. Known to many as the stuff used to pickle frogs for biology class, formaldehyde is a chemical the National Cancer Institute calls a cancer-causing substance.