General Purpose Spotter Quart -Harvard Chemical Research If you had to choose just one spotter, Peerless would be your first choice. Peerless lifts stains from carpet, upholstery, washable fabrics and most hard surfaces. It will remove blood, cosmetics, crayons, food stains, fruit juices, grass stains, grease, grime, iodine, latex paint, mildew, oil, most shoe polishes, washable ink and many other stains