Sodium percarbonate or natural/ green bleach is made from sodium carbonate (soda crystals) with the addition of hydrogen peroxide. The constituents of these products come from common natural raw materials (salt, water, chalk). This product does not contain chlorine or phosphate which are so harmful to our rivers and is non-bio accumulative. An excellent whitener used in many laundry detergents on the market, percarbonate delivers oxygen and acts as a stain remover to quickly and completely dissolve all kinds of stubborn stains such as tea, coffee, red wine, grass, laundry stains. fruit, perspiration. Percarbonate is ideal for naturally preserving the whiteness of your laundry even after numerous washes, because it prevents greyness due to limescale. This is a 1kg bag.