Pet Organics No Go! has been developed to help you housebreak your pet. No Go! is not a repellent. When sprayed on the soiled area, No Go! will eliminate the urine scent so your pet will not re-urinate in that area. Works great on indoor plants and Christmas Trees too! No Go! contains no harsh chemicals. Safe to use on almost all fabrics, however, before using product test on small inconspicuous area of surface.