In May 2019, a class-action lawsuit
was filed against L’Oreal for allegedly falsely advertising that EverSleek KeratinCaring shampoos and conditioners contain keratin when, according to plaintiffs, the products do not contain any keratin and do not provide benefits associated with the ingredient. (DeVane et al v. L’Oreal USA, Inc.
, Case No. 19-cv-4362, S. D. NY.)