'STOP USING': Major nation-wide recall at Walmart, Shoppers Drug Mart, No Frills, FreshCo, Food Basics, Metro, Sobeys and other stores of nearly 1.6 million shampoo products triggers warning from Heal

Health Canada is warning shoppers about a huge recall across Canada involving more than 1.5 million shampoo products in the country's big-name stores, due to cancer-causing carcinogen.