Persil HandWash Washing Powder 8 Wash, 760 g: ...- biological washing powder washing soap detergent washing laundry powder ,Persil Non Bio Tough on Stains, Kind Next to Sensitive Skin Fabric Cleaning Washing Powder 100% Recyclable Pack 130 Wash 8.385 kg 4.8 out of 5 stars 4,802 £14.00Bio Vs Non-Bio Washing Powder - Which?Biological washing powders, liquids and capsules differ from non-biological versions both in their ingredients and in how they remove stains. Many people think non-biological washing-powder is kinder to sensitive skin than biological detergents.