Fiber Refresh* is a special blend of acids, surfactants, corrosion inhibitors, and stabilizers that are specially designed and formulated to be used as a fine fabric rinse and acid rinse detergent. It is used to complete the extraction cleaning job with a New Fresh-N-Clean Fragrance. Its pH neutralizes cleaning residues, stabilizes color, prevents browning, and leaves a softer feel to the fabric. Works well when equally blended with Formula A.