Automatic biological washing powder Your improved 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 an improved and 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. Ever tried Persil small & mighty? A liquid that delivers an outstanding cleaning experience. Persil recommends using Comfort in every wash for outstanding softness and freshness.