Nellie’s made a Laundry Detergent that’s truly perfect for every household. Made with only four ingredients, Laundry Soda is a highly concentrated laundry detergent formula that dissolves quickly in cold or hot water and is septic safe. Most importantly, it rinses completely clear, leaving your skin and the environment as spotless as your clothes. For whitening and brightening, add 2-4 scoops of Oxygen Brightener to every load.