A shopping product is a type of product that requires consumer research and comparison of brands. Homogeneous and heterogeneous are the two specific types of shopping products. Homogeneous products are perceived by consumers as very similar in nature and the final purchase is usually determined on the lowest price.
An unsought product is a product of which consumers are unaware or are not that interested in actively pursuing for purchase. A high degree of marketing, including heavy advertising and aggressive sales techniques, is often necessary due to consumer unawareness of the product or no real desire to purchase it.