Made with only four ingredients, Laundry Soda is a highly concentrated 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. So don’t worry - even your mother-in-law will approve! Free from: SLS, SLES, gluten, phosphates, chlorine, fragrance, optical brighteners, and solid synthetics. Why powder? Liquid detergents are made up largely of water. At Nellie’s, we don’t think selling and moving water around the planet is a very good idea. The fact is, more cleaning power can be packed into a smaller space using powder. ** How to use:** Use one tablespoon of Nellie's Laundry Soda for each regular sized load. Wash according to instructions on garments. Always test on garments that may bleed or fade. Nellie's Laundry Soda is safe for HE and standard washing machines. Use the machine's dispenser or add right into the drum.