Procter & Gamble Co. plans to roll out a brand called DS3, which will include a line of eight liquid-free cleaning products for personal care and the home.

Deepak Rajagopal in Wall Street Journal: Forget Tide Pods. P&G Bets Water-Free Soap ‘Swatches’ Are the Future.

The amount of water used in the production of soaps and detergents represents a fraction of water consumed in the process of using the products. To substantially reduce water use, P&G would need to work on ways to cut down on how much water is needed to, for instance, do a load of laundry, said Deepak Rajagopal, an assistant professor at the Institute of the Environment and Sustainability at the University of California, Los Angeles. “Most of the impact happens on the consumer side,” he said.