Phycocyanin Powder is a dark blue powder isolated from Spirulina. It mainly exists in cyanobacteria, red algae and saphenous algae. Phycocyanin is also usually divided into C- phycocyanin and R- phycocyanin, the former mainly exists in cyanobacteria, while the latter mainly exists in red algae. The two species of Cryptococcus are found in cyanobacteria. Phycocyanin Powder function is to absorb light (orange yellow) and transmit light energy. It is not only a protein, but also an excellent natural food coloring. It is also a good health food.