Primary retail packaging is the packaging that directly contains the product and is meant to be opened by the customer. It can be a box, bag, or other container that provides protection and information about the product. Secondary retail packaging, on the other hand, is the outer packaging that holds multiple primary packages. Secondary packaging is typically used for shipping and display purposes. This form of packaging can take the form of display boxes, trays, mailer boxes, or any other type of cartons that help retailers transport and stock products efficiently.