Prell is a viscous, pearl green shampoo and conditioner product manufactured by Ultimark Products that contains a unique 'rinse clean' formula that provides a thick, rich lather for clean, healthy hair.
Prell was introduced by Procter & Gamble in 1947. The original formula was a clear green concentrate packaged in a tube. In 1955 Prell was marketed for "women who wanted their hair to have that radiantly alive look". A woman held the Prell bottle with her hands on both sides, directly in front of her face. Prell and Head & Shoulders, also made by Procter & Gamble, were the two best-selling shampoos in the United States in June 1977. Procter & Gamble had the highest advertising budget in the shampoo industry. The firm of Wells, Rich, Greene carried out advertising for Prell. Prior to December 1, 1973, Prell billings was coordinated by Benton & Bowles. In advertisements the quasi-liquid Prell would induce a pearl to sink slowly to the bottom of a container. Procter & Gamble sold the brand to Prestige Brands International in November 1999. Prestige then sold Prell, along with its other two shampoo brands (Denorex and Zincon) to Ultimark Products in October 2009 in order to focus more on their two larger segments: over-the-counter healthcare and household cleaning products
"Prell Shampoo was introduced by Procter & Gamble, of Cincinnati, Ohio, in 1947. This particular tube of Concentrated Prell Radiant Shampoo dates to around 1957 and was likely designed by Donald Deskey, a pioneer of modern industrial design. Deskey created packaging for many Procter & Gamble products, including the well-known Crest tube of toothpaste, Jif peanut butter, and Tide detergent. Prell's viscous green liquid and unbreakable bottle, featured in memorable advertising, made it fodder for many references in entertainment including television shows like Drawn Together, Seinfeld and The Simpsons. In the 1996 movie The Rock, Prell was used to represent the deadly VX gas. Prell was one of the highest selling shampoos in 1977."