Download Safety Data Sheet The basics Leaves laundry soft, wrinkle-free, with no perfumes or heavy scents. The Pro Tip Use low heat setting for synthetics. If spotting occurs at high heat setting, rub spot with a bar soap and rewash in warm water. The uses Add a new sheet on top of clothes at start of drying. The bottom line For Best Results: For large loads or extra softening, use an extra sheet.