We have made slight changes to the formula of our Ecover Zero Non Bio Laundry Liquid to bring it in line with the same performance as our main Ecover Non Bio Laundry Liquid. The product is suitable for sensitive for skin. We have added the following ingredients: Potassium Oleate – a soap derived from sunflower oil, Polypropylene terephthalate – a synthetic but biodegradable polymer that puts a layer of protective coating on your clothes that means stains can be removed more easily, and Glycerin – derived from vegetable oil, it makes the soil release polymer soluble so it can work.