Mealey's (February 22, 2016, 10:47 AM EST) -- ST. LOUIS — Two men on Feb. 17 filed a class action suit in Missouri federal court, alleging that a hair dye company does not warn its customers about burns and allergic reactions allegedly caused by a prolonged use of the product (Bryon Belton, et al. v. Combe Incorporated et al., No. 4:16-cv-00220. E.D. Mo.)....