1.CBN Brand Spirulina Powder is Pollution-free. 1.Quality Assurance:GMP 3.ISO9001:2000 certification. 4.Competitive price,Go CBN Brand Spirulina Platensis is a natural health food made of platensis with full contents of carotene, vitamin C, protein, etc ...It powerfully protects from oxidant stress and strongly supports the immune system .We can supply you with high-quality spirulina powder .