Profile: Cyanotech Corp. engages in the cultivation, production, and sale of natural products from microalgae. Our products include bioastin, natural astaxanthin and a dietary antioxidant for human nutraceutical and functional food ingredient to maintain the body. The natural astaxanthin enhances skin, muscle, and joint health. Spirulina Pacifica is a dietary supplement used for extra energy and for strengthening the immune system.