Automatic non-biological washing powder Your improved Persil non-bio Cleans tough stains even in a quick wash. Persil with wash booster technology** removes stains like grease, oil and mud. Tough stains are gone, even in a quick wash. The best ever stain removal from Persil, yet still kind and gentle next to sensitive skin. **Wash booster technology works best on greasy and oily stains with regular use on polyester British Skin Foundation recognises Persil's research into skin care Ever tried Persil small & mighty? A liquid that delivers an outstanding cleaning experience. Persil Non-Bio recommends Comfort Pure for sensitive skin. Comfort Pure's research into skin care is also recognised by the British Skin Foundation.