The U.S. Department of Labor's Occupational Safety and Health Administration (OSHA) issued a hazard alert on April 11 warning hair salon owners and workers about potential exposure to formaldehyde from using some hair smoothing and straightening products — including the Brazilian Blowout brand...Responding to complaints from workers, OSHA found evidence of dangerously high levels of formaldehyde in the air of salons using these...products...The OSHA alert comes on the heels of a legal scrum in California, where the state attorney general filed a lawsuit against Brazilian Blowout, seeking to mandate health warnings on the products. That would be the first enforcement action ever taken under the California Safe Cosmetics Act...The chemical industry is actually sort of coming down on the side of regulators and activist groups...The American Chemistry Council...called on the company that makes Brazilian Blowout to cooperate with government officials and ensure the product meets regulations.