Hepcidin is a peptide hormone that regulates iron metabolism by controlling the absorption and distribution of iron within the body. It is primarily produced by the liver but can also be found in other tissues such as the heart, lungs, and kidneys. There are several synonyms for hepcidin, including HAMP (hepcidin antimicrobial peptide), LEAP-1 (liver expressed antimicrobial peptide), and HEPC. These terms are often used interchangeably in scientific studies and medical literature to refer to the same hormone. Understanding the role and function of hepcidin is critical in the diagnosis and treatment of iron-related disorders such as anemia, hemochromatosis, and iron overload.