Rigorous clinical research costs millions of dollars. Herbal suppliers can't afford the investment. Some of the best research has been done in Europe where herbal products are frequently prescribed and are regulated more like other drugs. You must depend on the trustworthiness of suppliers. European suppliers must conform to regulations that are stricter than those in the United States.
Products processed in Germany, Switzerland, France or Italy are generally high quality.
At Wegmans we're conscious of this and work to sell products you can trust. Then purchase products that clearly and accurately identify the compounds standardized, the concentration, and the amount per dose. Don't be swayed by therapeutic claims. According to the Dietary Supplement Health and Education Act of 1994, a manufacturer is not allowed to claim that a supplement product cures a specific illness, such as the flu, common cold, or cancer. However, that hasn't stopped some suppliers make semi-therapeutic claims.