Spirulina Extract(Phycocyanin) is the natural blue protein extracted from blue-green algea (spirulina). It is a water-soluble pigment, non-toxic, pure, lovely clear. Not only bright colors, but in itself is a nutritious protein, amino acid composition range, high content of essential amino acids. It can improve immunity, enrich the blood, anti-oxidation, anti-tumor, anti-cancer, anti-inflammatory, anti-radiation, strengthen metabolism, keep full vitality, and so on. So,it is vividly called 'food diamond' by food experts. Popular used in food coloring, health products, pharmaceuticals and cosmetics. It is a colour food ingredient permitted by the European Union. And it is the only edible natural blue pigment approved by FDA.