spirulina (arthrospira platensis cyanobacteria)
Spirulina is a microscopic blue-green alga (0.2 to 0.3 mm long) whose name comes from its spiral shape. It grows in the warm waters of lakes in Africa and Central America. This alga is rich in vital nutritive substances including proteins, vitamins, iron, and various minerals and trace elements. The enzymes it contains stimulate cellular construction and combat skin ageing.