Caution: This appears to be, in essence, an "infomercial" by HerbalScience that has little if any real substantiation. Neither "Phytochemical Reviews" nor the "Research Journal of Phytochemistry" seem to have any article such as the one mentioned as having been "published in the peer-review scientific journal Phytochemistry." As cool as it would be if this were true, it certainly doesn't appear to be.
Carl- Here's a link to the abstract: http://www.ncbi.nlm.nih.gov/pubmed/19682714