Suitable for removing stains and discolouration from white and colourfast fabrics. This complex can bleach whites and helps to brighten yellowed or greying fabrics. Heat activates the hydrogen peroxide to degrade, which breaks down into water, soda and active oxygen. The oxygen molecules work by breaking down and oxidising the stains. Particularly effective on \'natural\' stains,such as grass, fruit etc. Bleach complex contains no optical brighteners or synthetic bleaching agents, and will become active at 50 degrees. But when soaking overnight, will slowly release at 30 degrees. For optimal results use with the Sonett washing powder and water softener. Made from 100% sodium percarbonate (created through the absorption of hydrogen peroxide by soda). 100% biodegradable. Sonett Bleach Complex and Stain Remover - 900g is part of the range of Sonett natural laundry products. Keep your laundry looking and smelling fresh and new with Sonett\'s collection of laundry essentials, from laundry liquids to stain & odour removers. Explore the full range of Sonett products, including organic hand soaps and Sonett dishwashing products, available from Big Green Smile.