Displaying 5 results of Ractopamine Impurities Ractopamine is a feed additive used in the livestock industry to promote growth and lean muscle mass in animals. However, during the manufacturing process of ractopamine, impurities can be produced as by-products. These impurities can have potential health risks to both animals and humans, and strict regulations have been put in place to monitor and control their presence. Manufacturers are required to test for and minimize the levels of these impurities to ensure the safety and quality of ractopamine products.