Spirulina (Arthrospira maxima) is a blue-green microalgae with a typical narrow and elongated shape, similar to a spiral. The dark green coloration is due to the high content of chlorophyll. A millenary organism, today it is mainly cultivated in artificial lakes of regions with suitable climate, such as China and Mexico. Spirulina seaweed prevents hair loss, moreover, being rich in copper, iron and B group vitamins, it serves to regenerate weakened and debilitated hair by promoting the development of tone and shine.