Chitosan powder, or Chitosan supplements, by BulkSupplements.com is one of the selections of our dietary supplements. Chitosan is derived from chitine which is found in outer skelotns of shellfish. Each serving of this product contains 1000mg or 1g of Chitosan which is about 1/3 tsp, and may need a gram scale to measure. Contents of this product is sold by weight, not volume and settling may occur. And, we also sell it different sizes ranging from 100g to 5kg in resealable bags Our Chitosan powder, a fiber supplement, is pure, clean, and does not contain any fillers, additives and artificial flavors. And this Chitosan powder, or Chitin supplement, is dairy free, soy free, yeast free, no added sugar. Do not take Chitosan supplements if you have sensitivities to shellfish. 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.