The primary ingredients are sispanga, Sacha café, and sisopanga rojo. These ingredients are from the Quassia Amara (also known as Amargo) family of flora from South America. Extracts of Quassia wood or bark act as a natural contact insecticide and antiparasitic. It has been used for years as a natural insecticide for organic farming. Amargo is also used as an aid for digestive disorders in humans. No adverse effects have been found. Quassia extract, because of its bitter flavor, is used to flavor soft drinks and in the manufacture of bitters.
The Rain-Tree Tropical Plant Database (www.rain-tree.com) lists the curative properties of Amargo as: kills parasites, kills lice, kills insects, kills larva, and treats malaria. Amargo wood is on the FDA’s GRAS list (generally regarded as safe). Toxicity studies performed reported no toxicity in oral dosages up to 5g per kg of body weight. However, “Complete Coat” is not for internal use. It is a topical treatment applied by being sprayed onto the pet’s coat and massaged in or brushed in to assure complete coat coverage down to the skin.