A Certificate of Analysis (COA) means the product has gone through rigorous analysis to ensure the absence of contaminants, heavy metals, pesticide residues, and microbiological safety evaluation. Each batch is awarded a certificate of analysis and lot number, so it can be traced.

Certificate of Analysis (COA) also means that it each batch has been third-party tested in compliance with their guidelines. It means it was tested by a company that is not involved in the production or sale of the supplement to ensure the product is safe for use.