seventh generation - free & clear 4x natural laundry detergent - 50 fl oz. seventh generation caring today for seven generations of tomorrows. our promise to youit works: 4x concentrated triple-enzyme formula works great even in cold water. removes stubborn stains, dirt & grease. it's natural: usda certified biobased product (96%) we care: clinically proven to be hypoallergenic. made without dyes, synthetic fragrances or optical brighteners.