Prell shampoo, introduced by Proctor & Gamble in 1947 with its innovative formula and packaging design, has endured the test of time. Over the years it has brought us some of the most memorable moments in advertising. We all remember the famous commercial where a pearl slowly drops into the Prell bottle to demonstrate the thick, rich, luxurious shampoo. Prell has become an icon of American culture and nostalgia. A product doesn’t last this long just because of good advertising. It lasts because it’s a classic - you can always count on the same value, thick rich formula and clean fragrance.