Downy Unstopables In Wash Scent Booster adds 12 weeks of freshness that elevates the everyday (freshness out of storage). It can be used on all colours and fabrics, and is safe to use in all washing machines. Comes in a fresh, bright and vibrant airy scent. Toss as much as you like in the washer before clothes, detergent, and softener. You can use on any high efficiency and top load machines.