Many of us are looking for all-natural or eco-friendly cleaning products to use at home. The good news is that there are many great brands to help you get your home sparkling clean. But since cleaning products are not required by law to list ingredients, it can be hard to tell if something is nontoxic or not. Since all cleaning products need to have a warning in case of accidental ingestion, see what level of toxicity is marked on the product. A product labeled with the word "caution" is less toxic than products labeled with the words "warning," "danger" or "poison."