Spirulina (from its latin name Arthrospira platensis) is a micro-seaweed of fresh water named so because of its spiral shape is. It brings to the body the essential elements for its functioning and its immunity. Indeed, it contains vitamins, minerals, essential fatty acids, amino acids and other elements… The spirulina is completely cultivated by soft and not aggressive methods in a carefully controlled environment, which accelerates the production of a blue natural phyto-pigment of the spiruline, the phycocyanin. The preservation of the liquid form of the extract of spirulina by opposition to the powder dry form allows not to alter the phycocyanin. To be effective, the phycocyanin must be extracted and concentrated. According to a patented filtration method of the liquid extract of spirulina, this extract is from 6000 to 7000 times more concentrated in phycocyanin than in the natural state and allows especially to preserve all the biochemical properties of the phycocyanin. Thus, it allows to guarantee a greater efficiency of the phycocyanin from the first doses.