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Black women and women of other ethnicities have used chemical hair-straightening treatments for decades, and many of the relaxers, creams and keratin treatments contain formaldehyde — a chemical ...
Methanediol, rather than formaldehyde, is listed as one of the main ingredients of "Brazilian blowout", a hair-straightening formula marketed in the United States.The equilibrium with formaldehyde has caused concern since formaldehyde in hair straighteners is a health hazard.
The Department of Health and Human Services lists formaldehyde as a carcinogen, and last year the FDA issued a warning against chemical hair straighteners that release formaldehyde when heated up ...
Brazilian hair straightening treatments are meant to mostly or partially eliminate hair frizz and straighten curls and waves. They can be performed on all types of hair, whether natural or chemically treated (bleached, highlighted, colored, permed, relaxed or previously straightened). The effect usually lasts about three months.
Several leading brands of hair straightening products have been found to contain high levels of formaldehyde (up to 10%) even when labeled "formaldehyde-free." Formaldehyde gas can be severely irritating to the eyes, nose, and throat, and long term exposure to formaldehyde in the workplace has been linked to increased risk of cancer.
The FDA said in October that it planned to propose a ban on formaldehyde and other formaldehyde-releasing chemicals in hair-smoothing or hair-straightening products, often called relaxers, which ...