Source Naturals Yaeyama Chlorella Green Superfood provides a vegetarian source of B-12* in a plant-based formula. Each tablet provides 200 mg of Yaeyama chlorella. Suggested use: 10 tablets daily with food. This vegan-friendly supplement contains no yeast, dairy, egg, gluten, corn, soy or wheat, and is free from sugar, starch, salt, preservatives, or artificial color, flavor, or fragrance. Manufactured in the USA in Scots Valley, CA under cGMPs established by the FDA.