The GreenEarth® Cleaning process uses liquid silicone in place of petrochemicals. Essentially liquified sand, silicone is non-hazardous and non-toxic to the environment. When released to the environment, it safely breaks down into the three natural elements it is made from: sand (SiO2) and trace amounts of water and carbon dioxide. Which means it is safe for the air, water and soil. GreenEarth® is safe for people too. If you wanted to, you could safely rub it on your skin. In fact you probably already do. Liquid silicone is the base ingredient in many everyday shampoos, conditioners and lotions.