Guardion Health Sciences, Inc.is a clinical nutrition and diagnostics company, which develops medical foods and medical devices in the ocular health space and develops nutraceutical products to provide supportive health benefits to consumers. The firm operates through the following segments Medical Foods and Nutraceuticals & Medical Devices. The Medical Devices segment includes a portfolio of medical diagnostic devices currently focused on the ocular space and contrast testing. The Medical Foods and Nutraceuticals segment provides a portfolio of science-based, clinically supported nutrition, medical foods, and supplements. Its products include Lumega-Z, GlaucoCetin, ImmuneSF, VectorVision, and MapcatSF. The company was founded by Michael Favish in 2009 and is headquartered in San Diego, CA.