Keratin hair treatments, known for making kinky locks straight, sleek, and frizz-free, are a pricey but very popular process in many beauty salons. Concerns have been raised, however, that the formulas may contain formaldehyde, a carcinogen. This issue is of particular interest not just to salon customers but also to hair stylists who have applied these treatments and complained of nosebleeds and eye irritation. The Good Housekeeping Research Institute (GHRI) decided to conduct its own analysis.
GHRI tested four salon brands-Brazilian Blowout, Marcia Teixeira, Keratin Complex by Coppola, and Global Keratin Light Wave-at an outside lab for the presence of formaldehyde. We found the toxic chemical in all four products, at levels exceeding the Cosmetic Ingredient Review's 0.2 percent recommended threshold.
A Heated Controversy
After Oregon Occupational Safety and Health Administration (OSHA) conducted a study in September 2010