Formaldehyde levels in hair straighteners too high

Formaldehyde levels in hair straighteners too high

(HealthDay)—Formaldehyde concentrations in Brazilian keratin treatment hair straightening products may exceed recommended safety levels, according to a study published in the February issue of the Journal of the American Academy of Dermatology.

Mbulelo H. Maneli, Ph.D., from the University of Cape Town in South Africa, and colleagues utilized high-performance liquid chromatography with ultraviolet light detection after derivatization with dinitrophenylhydrazine to quantify formaldehyde concentrations in all Brazilian keratin treatment brands marketed in South Africa in 2012. The components of seven commercial brands were each tested three times.

The researchers found that six of the commercial brands tested had formaldehyde levels that ranged from 0.96 to 1.4 percent, and which exceeded the maximum safe concentration of formaldehyde set by the U.S. Cosmetic Ingredient Review Expert Panel of less than 0.2 percent. Five of these brands were labeled as -free.

"Formaldehyde concentrations in Brazilian keratin treatment products may exceed recommended levels and serve as a health hazard," the authors write. "Industry monitoring is needed to improve compliance and protection of hairdressers and consumers."

More information: Abstract
Full Text (subscription or payment may be required)

Related Stories

Researchers develop “net” nanodetector

date Aug 01, 2011

Bin Ding and his team of researchers at Donghua University, Shanghai, China, have developed a new method of testing for formaldehyde using an electro-spinning netting technique. The process, described in their paper published ...

Beef sold in Zambia contained harmful chemical: govt

date Jul 19, 2013

Beef products imported from Europe and distributed in Zambia by leading meat company Zambeef have tested positive for aromatic aldehyde, a chemical which can cause cancer, the health minister said Friday.

Recommended for you

Physician/Pharmacist model can improve mean BP

date 23 hours ago

(HealthDay)—A physician/pharmacist collaborative model can improve mean blood pressure (BP), according to a study published online March 24 in Circulation: Cardiovascular Quality and Outcomes.

Innovative prototype presented for post-ICU patients

date 23 hours ago

(HealthDay)—A collaborative care model, the Critical Care Recovery Center (CCRC), represents an innovative prototype aimed to improve the quality of life of intensive care unit (ICU) survivors, according ...

Clues to a city's health may be found in its sewage

date Mar 27, 2015

Research from the University of Wisconsin-Milwaukee suggests that sampling a city's sewage can tell scientists a great deal about its residents – and may someday lead to improvements in public health.

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.