Bio Washing Powder - Tesco Groceries- biological washing powder washing powders that contained Powder washing ,Add Persil Biological Washing Powder 40 Wash 2.6Kg Add add Persil Biological Washing Powder 40 Wash 2.6Kg to basket. Daz Washing Powder For Whites & Colour 37 Washes 2.405Kg. Write a reviewBiological Washing Powder, Apparel Cleaner ManufacturerJul 24, 2020·It is best to use biological washing powder, such as low foam or non-foam washing powder. Synthetic washing powders are roughly divided into three types: neutral, weak alkaline and strong alkaline. 1. In fact, it is wrong to put the clothes first and then the washing powder.