The term 'Suave Rival' is a combination of two different hair care products, Prell and PERT. Prell is a brand of shampoo that was first introduced in 1947 and is known for its thick lather and ability to remove dirt and oil from the hair. PERT is a brand of conditioner that was introduced in the 1970s and is known for its ability to add moisture and shine to the hair. Together, these two products form a powerful duo that can help keep hair looking healthy and shiny.