Stubborn stains and odors in microfiber and other laundry can be extremely hard to remove, especially in hard water. Our enzyme-based Microfiber Cleaner Laundry Booster restores dingy, smelly laundry to bright, clean and fresh, without harmful chemicals from bleach, ammonia or synthetic fragrances. Eliminates all kinds of laundry stains and odors, including grass, urine, blood, grease, grime and more, even in hard water. Safe for all machine-washable fabrics; use as a hot-water pre-soak or as part of your regular laundry routine.