Spirulina Extract is natural light blue colorant extracted from blue-green algea (Spirulina ).It`s good water soluble,Alcohol and lipid insoluble.China H&Z® Spirulina Extract Phycocyanin accounts for as much as 20% protein and attaches itself to photosynthesizing membranes, also it`s anti-inflammatory and antioxidant. It`s an accessory pigment to chlorophyll.Phycocyanin is derived from C-phycocyanin and allophycocyanin which have fluoresent properties that are valuable to research in immune assay kits. Spirulina Extract Phycocyanin is selective about which cells it attaches to, making it simple to track down.