Persil liquid non-bio is great for all-round cleaning, and gentle on sensitive skin. The new bottle formula makes this non-bio product more effective than ever! What's the difference between bio and non-bio? We have the answers here. Wondering how to use the Stain Eraser Ball? Find out how to use Persil liquid liquid detergent here. Cleans oily stains while leaving clothes kind next to skin. Easy-open flip top and spout for mess-free pouring. Easy-to-use range for brilliant cleaning results every time. Best ever formula, bottle design and clever Stain Eraser Ball. Perfect for measuring exact dosage. Persil skincare research is recognised by the British Skin Foundation. Pre-treat tough stains using the Stain Eraser Ball