Iguana Scram is specifically designed to stop and then prevent damage caused by iguanas. It has been tested by professional landscapers and pest control operators to be highly effective and long lasting. Iguana Scram is an all natural product that contains no chemicals and is a low cost solution to ridding your property of unwanted iguanas. It works by taste and odor offensive to iguanas. It does not harm reptiles, plants, people or pets. All natural and environmentally friendly. Stops damage to plants and grass