The Procter & Gamble Company announced that Gain has become the company’s 23rd brand with more than $1 billion in sales. While many of P&G’s other billion-dollar brands are sold globally, as a solely North American brand, Gain is the company’s eighth largest brand in dollar sales in the U.S.; Gain is also the second largest selling laundry detergent in the U.S. Gain was introduced to the market in 1969 as an enzyme-driven stain removal detergent; however, in 1981, Gain ...