Guardion Health Sciences is a specialty health sciences company in the United States that operates in two segments, Medical Foods and Nutraceuticals, and Medical Devices. The company offers various medical foods such as Lumega-Z and GlaucoCetin, as well as medical devices like MapcatSF and CSV-1000, and CSV-2000. Guardion Health Sciences also develops ImmuneSF, a nutraceutical formulation, and distributes medical food products via e-commerce.