Bio'and Non-Bio washing powder

[p.harrison]

What is the difference between Bio and Non Bio washing products, which is best and why?

[incitatus]

Bio washing powders have digestive enzymes in them which break down grease and stains at low temperatures.
Non Bios don't.
As to which is better, bios almost always perform better, but many people get skin rashes if they use them. Particularly those with sensitive skins, ie children..