ProPhase Labs, Inc. develops and commercializes novel drugs, dietary supplements, and compounds in the United States. It operates through two segments: Diagnostic Services and Consumer Products. The company offers dietary supplements under the TK supplements brand, including Legendz XL for male sexual enhancement and Triple Edge XL for energy and stamina. It also develops BE-Smart, an esophageal pre-cancer diagnostic screening test for early detection of esophageal cancer; genomics testing technologies to analyze entire genomes, including genes and chromosomes in DNA; DNA Expand, a platform allowing consumers to upload DNA data from previous tests obtained from other service providers; and LB-1 and LB-2 for the treatment of cancer, inflammatory diseases or symptoms, and memory-related syndromes, diseases, or symptoms, including dementia and Alzheimer's disease. In addition, the company provides Nebula, which focuses on genomics testing technologies as a comprehensive method for analyzing entire genomes, including genes and chromosomes in DNA. It offers its genome sequencing products to consumers online with plans to sell in food, drug, and mass retail stores. The company was formerly known as The Quigley Corporation. ProPhase Labs, Inc. was founded in 1989 and is headquartered in Uniondale, New York.