DXN Products Online Healthy Facts - Spirulina is a great source of other nutrients including (according to Wikipedia): “It contains vitamins B-1(thiamine), B-2 (riboflavin), B-3(nicotinamide), B-6 (pyridoxine), B-9 (folic acid), Promoting hair
Spirulina (dietary supplement) - Wikipedia
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Spirulina (genus) - Wikipedia
5 things to check when purchasing spirulina or chlorella - Plantpills Wiki