Schisandra Extract, in powdered extract form by BulkSupplements.com is one of the selections from our herbal supplements. This Schisandra Fruit Extract powder is sourced from Schisandra chinensis fruit. Each serving of this product contains 1000mg or 1g of Schisandra Berry Extract which is about 1/3 tsp and may need a gram scale to measure. And, we also sell it different sizes ranging from 100g to 5kg in resealable bags. Contents of this product is sold by weight, not volume and settling may occur. Our Schisandra Berries Extract powder, or Schisandra Berry powder, is pure, natural and does not contain any additives, and artificial flavors. And our Schisandra supplement, or Schisandra Berries powder, is dairy free, gluten free, soy free, yeast free, and no added sugar. All products by BulkSupplements.com are manufactured according to cGMP Standards to ensure the highest quality for manufacturing, packaging, labeling, and holding operations. We work with a third-party laboratory that test our products at multiple stages during production, from raw material to finished products, and ensures compliance, standards, and consistency.