Cyanotech Corp. develops and commercializes natural products from microalgae. It produces BioAstin natural Astaxanthin dietary supplement with powerful antioxidant and other health benefits and Hawaiian Spirulina Pacifica is a microscopic blue-green vegetable algae, which is a food source for centuries. Read More It also serves the nutritional supplement and immunological diagnostics markets in addition to microalgae-based products and food coloring markets. The company was founded by Gerald R. Cysewski in 1983 and is headquartered in Kailua-Kona, HI.