how is the valerian extract standardized .That is, is a certain component titered to a certain concentration to allow batch to batch predictable outcome . What is the component that is standardized and what is it standardized against ? What are the Gold standard values for a standard titer ? ## Valerian is a supplement, not a prescription drug, therefore it is not standardized. Concentrations will vary from one companies product to another. ## In the advertisement for valerian extract in Sedonium it says a standardized valerian extract . So what does THAT mean ? I fully understand about variation for herbl to herbal but to use the term standardized implies some sort of control... ## Then that is something I cannot answer, those standards would be set by the company itself, so you would ...