Simple Solution Cat Stain & Odour Remover is the only formula which contains both Pro-Bacteria and enzymes which effectively remove stains and odours. Simple Solution is completely safe for use around pets and children. The formula has been specifically designed to clean mess from pets such as vomit, urine and faeces, completely ridding your home of odours and discouraging pets from repeat marking. Safe for use on carpets. upholstery, bedding, clothing and any other water-safe surfaces.