Automatic biological washing powder Your new Persil Cleans tough stains even in a quick wash. Persil with wash booster technology* removes stains like grease, oil, mud, grass & chocolate ice cream. Tough stains are gone, even in a quick wash. The best ever stain removal from Persil. With a long lasting fragrance. *Wash booster technology works best on greasy and oily stains with regular use on polyester. A biological product contains enzymes. These enzymes are highly efficient stain removal ingredients that work at low temperatures.