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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 ...
The U.S. Food and Drug Administration is considering a ban on certain hair-straightening chemicals that have been used by Black women for years and that research shows may increase the risk of ...
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.
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.
The Cosmetic Ingredient Review Expert Panel revisited Emulsifying Wax NF in 2003. They found that it was used in 102 cosmetic products in 2002 at a maximum use concentration of 21% (in hair straighteners). Based on the data available in 2003, the CIR determined not to open a new safety assessment. [5]