Yes and no. The Qualatex latex balloons in our product offering are made from 100% natural latex that comes from the sap of the rubber tree. Through scientific research, it has been determined that our latex balloons decompose as fast as an oak leaf. Foil balloons are made from a various types of plastics, most of which have a very thin film of foil covering the balloon. They are similar to the packaging used for potato chips and cookies. These balloons are not biodegradable and should be disposed of in your household trash containers.