AFA is a unicellular, blue-green microalgae (Aphanizomenon flos-aquae, Latin for "invisible flower of the water") that is also considered a cyanobacteria ("blue-green algae") species. It grows only in the wild in lakes and ponds, especially in the deepest and most pristine waters of Upper Klamath Lake (USA).
Due to its uniquely broad spectrum of typical ingredients, it is known as one of the richest superfood algae. In addition, the AFA algae is rich in valuable phytochemicals such as chlorophyll and phycocyanin, which account for its characteristic dark blue-green colour.