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)

add to favorites email to friend print save as pdf

Related Stories

Researchers develop “net” nanodetector

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

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

Obesity and stress pack a double hit for health

40 minutes ago

If you're overweight, you may be at greater risk for stress-related diseases like type 2 diabetes, cardiovascular disease and cancer, according to a new study by Brandeis University.

Sales influence consumer food shopping habits

2 hours ago

(HealthDay)—Consumers are more likely to buy high-calorie foods (HCF), but not low-calorie foods (LCF) on sale, according to a study published in the U.S. Center for Disease Control and Prevention's Preventing Ch ...

User comments