Placenta injections may include components of placenta from a variety of animals, including sheep, though they can also include human placenta. When made from human placenta, blood and other tissues are modified, though enzymes remain intact. Though it is not believed that these treatments can cause disease, some doctors remain skeptical about both the safety and the usefulness of the treatments. These treatments are commonly used in Asia. Many people claim that placenta injections create a more youthful look, increase energy, and can treat liver disease.
The components of these treatments are collected from the placentas of humans or animals after they give birth. In order to make this material safe to inject into the bloodstream of a human patient, the placenta is tested for disease and purified to remove anything that could be harmful. Certain proteins in the placenta may also be made dormant via the sterilization process. Once the placenta for the injections is sterilized and ready for use in humans, it still contains a number of enzymes that can be beneficial. Certain hormones, immune system boosters, and nutrients that nourish a growing fetus can have health benefits in adult patients.