Guinea Pig Hemoglobin is a hemoglobin derived from guinea pigs. Hemoglobin is an iron-containing protein in red blood cells with oxygen-binding capabilities. It acts as an HO-1 inducer and is composed of heme, which can bind to oxygen. Furthermore, hemoglobin transports other gases such as carbon dioxide, nitric oxide, hydrogen sulfide, and sulfides. It also absorbs excess oxygen in tissues, functioning as an antioxidant.