ECOS Pro Liquid Laundry Detergent Magnolia and Lily, 1 Gal. ECOS Laundry Detergent is the best-selling environmentally preferable laundry in the United States. Versatile and hypoallergenic, ECOS can be used in high efficiency machines or standard machines and in hot, warm or cold water. Cleans clothes without disintegrating fabric fibers or fading colors. Magnolia and Lily Scent. Built-in fabric softener. Readily biodegradable, pH balanced formula is made using sustainable, plant-derived surfactants. Product is free of dyes; greywater and septic safe. Recognized by the EPAs Safer Choice (DfE) and USDAs BioPreferred Program.