D-Aspartic Acid is a non-essential amino acid occurring principally in the pituitary gland and the testes. It plays a vital role in release and synthesis of luteinizing hormone, growth hormone, and testosterone.* We include a correctly sized serving scoop and this powder is micro granulized for superb flow and minimal clumping. Our bulk powders are HPLC tested for potency and purity in an FDA inspected facility. This bulk powder has no fillers or flavoring so be sure to check out our extreme flavors to make any flavorless supplement exceptionally easy to drink.