Lots of studies have investigated what supplements really contain and these two are no exception in revealing the truth about what is really in them. There are no regulations on dietary supplements for content or efficacy. Unless the FDA has evidence that a supplement is dangerous or marked with illegal claims, the FDA is prevented from doing so by the Dietary Supplement Health and Education Act passed in 1994. The FDA only requires a Supplement Facts Label on herbs which must list the ingredients, the Percent of Daily Value (if applicable), common name of the plant the part of the plant used, how much is present in each pill and a suggested daily dose. Apparently, this is not working well!